Name: _________________________________
Date: __________
Period: __________
Mrs. Bonewald/Ms. Schoepfer
Science 7 Quarterly Exam (2nd Marking Period)
DUE DATE: Tuesday 1/26
TEST DATE: Wednesday 1/27
The following topics will be covered on the Quarterly Exam:
Aim # 9 Potential vs. Kinetic Energy
Aim # 10 Energy Transfer
Aim # 11 Heat Transfer
Aim # 12 Phases of Matter
Aim # 13 Electricity
Aim # 14 Magnetism
Aim # 9 Potential vs. Kinetic Energy (Use your Aim # 9 Notes to answer the following questions)
1) What is energy? ______________________________________________________________________
___________________________________________________________________________________
2) What is Earth’s original form of energy? __________________________________________________
3) How is matter different than energy? _____________________________________________________
___________________________________________________________________________________
4) Provide three examples of matter:



5) Provide three examples of energy:



6) Define Potential Energy: _______________________________________________________________
7) Gravitational, elastic, and chemical are all examples of potential energy. Provide an example of an
object that has these types of potential energy
a. Gravitational: __________________________________________________________________
______________________________________________________________________________
b. Elastic: _______________________________________________________________________
______________________________________________________________________________
c. Chemical: _____________________________________________________________________
______________________________________________________________________________
8) Which object has the greatest amount gravitational potential energy? Support your answer.
_______________________________________________________________
_______________________________________________________________
_______________________________________________________________
9) Which object has the greatest amount elastic potential energy? Support your answer.
_______________________________________________________________
_______________________________________________________________
_______________________________________________________________
_______________________________________________________________
10) Define Kinetic Energy: _______________________________________________________________
11) How does velocity affect kinetic energy? _________________________________________________
__________________________________________________________________________________
12) How does mass affect kinetic energy? ___________________________________________________
__________________________________________________________________________________
13) Which ball, would have more kinetic
energy if rolled down a hill? Support your
_______________________________________________________________
answer.
_______________________________________________________________
_______________________________________________________________
_______________________________________________________________
14) If an object is standing still, does it have potential energy or kinetic energy? ____________________
15) Describe the energy changes that occur while the child is riding the bicycle down the steep hill?
(Describe changes to both potential and kinetic energy).
____________________________________________________________________________________
16) Describe the energy changes that occur while the child is pedaling the bicycle up the steep hill?
(Describe changes to both potential and kinetic energy).
____________________________________________________________________________________
17) Analyze the diagram below to answer the following questions. Please note: the ball is in constant
motion from point A to point G.
a. At which point does the ball have the most potential
energy? ______________
b. At which point does the ball have slightly less
potential energy than B? ______________
c. At which point does the ball have the most kinetic
energy? ______________
d. At which point does the ball have slightly less
kinetic energy than point D? ______________
e. At which point does the ball have slightly more
kinetic energy than point C? ______________
f.
Aim # 10 Energy Transfer (Use your Aim # 10 Notes to answer the following questions)
18) Directions: On each line write the terms from the word bank that matches the description correctly.
Some terms may be used more than once, but only one term may be used per line.
electrical
mechanical
nuclear
solar
sound
thermal
a. Shooting a basketball: _______________________________
b. A phone ringing: _______________________________
c. The energy of moving atoms: _______________________________
d. Energy given off by the sun: _______________________________
e. Carried by an electric current: _______________________________
f. Microwaves are an example: _______________________________
g. Heat is the movement of this type of energy: _______________________________
19) Describe the Law of Conservation of Energy: ____________________________________________
___________________________________________________________________________________
a. Fill in the blanks for each of the energy transformations below with the correct form of energy.
_____________________- ______________________ - _______________________
a.
b. Making toast in a toaster- ________________________  ___________________________________
c. Watching television- _________________________ ________________________________ and
__________________________________
d. Using a curling iron to curl hair ___________________________ _____________________________________
and ____________________________________________
Aim # 11 Heat Transfer
20) Describe each of the following:
a. Conduction: ___________________________________________________________________
b. Convection: ___________________________________________________________________
c. Radiation: ____________________________________________________________________
21) Identify which type of heat transfer is indicated in the example:
a. Warming your hands over a radiator: ______________________________
b. Eggs cooking in a frying pan: ______________________________
c. Water boiling in a kettle: ______________________________
d. Warmth from a fire place circulating a house: ______________________________
e. Getting a sun tan: ______________________________
f. Ice cubes keeping lemonade cold: ______________________________
g. Burning your hand on a hot pan: ______________________________
Aim # 12 Phases of Matter
22) How are solids, liquids, and gases different from one another? (include the movement of molecules,
shape, and volume/ draw a picture as well)
a. Solid: ______________________________________________________________________________
____________________________________________________________________________________
____________________________________________________________________________________
b. Liquid: _____________________________________________________________________________
____________________________________________________________________________________
____________________________________________________________________________________
c. Gas:_______________________________________________________________________________
____________________________________________________________________________________
____________________________________________________________________________________
23) Describe each of the following phase changes:
a. Melting: ______________________________________________________________________
b. Freezing: _____________________________________________________________________
c. Evaporation ___________________________________________________________________
d. Condensation: _________________________________________________________________
24) Describe what happens to the temperature of the object during a phase change. (refer to the diagram on
pg. 2) ______________________________________________________________________________
___________________________________________________________________________________
25) Label the phase change diagram below. Use the word bank below.
Gas
condenstation
melting
freezing
liquid solid
evaporation
26) On the phase change diagram above, draw a star on the line segments where the temperature of the
object remains the same.
Aim # 13 Electricity
27) How are the charges of electrons, protons, and neutrons different from one another?
____________________________________________________________________________________
____________________________________________________________________________________
____________________________________________________________________________________
28) Which type of charges are attracted to one another? Draw a diagram to represent this example.
_________________________________________
29) Which type of charges repel each other? Draw a diagram to represent this example.
_________________________________________
30) After your rubbed the balloon on your sweater the overall charge of the sweater was negative. How did
the overall charge of the sweater become negative? _________________________________________
__________________________________________________________________________________
31) If the overall charge of the balloon was negative, why was the balloon attracted to the pieces of paper?
__________________________________________________________________________________
__________________________________________________________________________________
32) What do you need to light a lightbulb?



33) Define: Electrical Current: ____________________________________________________________
__________________________________________________________________________________
34) Define: Electric Circuit: ________________________________________________________________
__________________________________________________________________________________
35) Which material is the wire made up of? __________________________________________________
36) Why do they use this material? _________________________________________________________
___________________________________________________________________________________
37) Draw an open circuit. Would the light bulb light up? Explain why or why not.
38) Fill out the chart below:
Series
How does energy flow?
Give one example.
As you add light bulbs, what happens
to the brightness of each bulb?
What happens if one bulb goes out?
Sketch a picture (label the power
source, the light bulb, and the wire)
Parallel
Aim # 14 Magnetism
39) Define Magnetism: ____________________________________________________________________
____________________________________________________________________________________
40) List two examples of magnetism:


41) What is the core of Earth made up of that causes a magnetic field?
________________________________________________________________________________
42) Describe how magnets are attracted to one another and how they repel from one another.
________________________________________________________________________________
________________________________________________________________________________
43) Where on a magnet is attractive force the greatest? _______________________________________
44) Does force increase or decrease as you move the magnet further away? ______________________
45) As each object (like the paper clips) are added to the magnet, does the force increase or decrease?
_______________________________________
46) When drawing magnetic field lines, where on the magnet are the lines extended from?
________________________________________________
47) Label the North and South Pole of the magnets below.
48) How can you increase the magnetic field of an electromagnet?
____________________________________________________________________________________
____________________________________________________________________________________
____________________________________________________________________________________