Name: ____________________________
1nd Semester
Science Review
Period: __________
1. Define the following terms:
a. Acceleration-
b. Velocity-
c. Inertia-
d. Net force-
e. Force-
f. Speed-
2. What are the following an example of: SPEED, VELOCITY, or ACCELERATION?
A person walks 3.5 mph. __________________
A bike goes 30 m/s toward town. ____________________
A greyhound dog can run about 40 mi/hr. ________________________
Monarch butterflies fly 12 mi/hr south as they migrate. ___________________
A car slows from 60 mi/hr to 25 mi/hr. ________________________
A car turns left while maintaining the same speed. ______________________
A trip from Austin to Dallas takes about 3 hours going 65 mi/hr north. ________________
Canadian geese can fly approximately 75 miles in 3 hours. ____________________
A car increases speed from 30 mi/hr to 65 mi/hr. ____________________
3. Answer the questions using pictures one and two.
4. What is Newton’s 1st Law? Give an EXAMPLE.
5. What is Newton’s 2nd Law? Give an EXAMPLE.
6. What is Newton’s 3rd Law? Give an EXAMPLE.
7. What is the equation used to find the following terms:
a. Force –
b. Acceleration –
c. Mass –
8. What is the equation used to find speed?
9. If a person pulls on a cart to the right with a force of 20 N and a second person pulls to the left
with a force of 15 N, what is the net force (and direction) on the cart?
10. If a person is pushing a cart with a force of 40 N and it accelerates at 0.5 m/s², what is the mass of
the cart?
11. What is the acceleration of a 2 kg rock that is thrown with a force of 15 N?
12. A 150 kg object is accelerating at a rate of 20 m/s. Calculate the force needed to produce this
acceleration.
13. A car travels 2.5 hours in a northerly direction for 300 km. Determine the car’s speed and velocity.
14. What is happening at each point in the graph below:
15. What is happening at each point in the graph below:
B
A
C
16. Complete the following table:
Subatomic particle
Proton
Neutron
Electron
Charge
17. What does APE MAN stand for?
Mass
Location
18. Label the following information on the periodic table below (make a key):
a. Metals, nonmetals, and metalloids
b. Periods and groups
c. Horizontal and Vertical
d. Most reactive and valence
electrons
19. Complete the following table:
Chlorine
Sodium
Magnesium
20. Complete the following questions for the Bohr model to
the right:
-
a. What is atomic number of the atom?
+ +
b. What is the mass number of the atom?
c. What is the name of the element represented?
-
d. What is the chemical symbol of the element?
-
+
21. Which group has 7 valence electrons?
22. Which group has 8 valence electrons?
23. What are the 5 signs a chemical change/reaction has occurred?
24. Circle the word that does NOT belong in the group and then write why it does not belong.
a. vertical column, group, period, valence electrons
b. group, period, seven, horizontal rows
c. neon, nitrogen, helium, argon
d. nonmetal, oxygen, gain electrons, calcium
e. copper, silver, zinc, gold
f. silver, nickel, cobalt, iron
25. Complete the following tables for each Bohr model:
Protons: ____ Electrons: ____Neutrons: ____
Element Positives Negatives Neutrals = Total
Name
Charge
Protons: ____ Electrons: ____Neutrons: ____
Element Positives Negatives Neutrals = Total
Name
Charge
Protons: ____ Electrons: ____Neutrons: ____
Element Positives Negatives Neutrals = Total
Name
Charge
26. What is a subscript in a chemical equation?
27. What is a coefficient in a chemical equation?
28. Counting Atoms- List the atoms and how many of each are present in each formula below:
C6H12O6
2H2O
Ca(H2PO4)
3Mg(OH2)
29. Is the chemical equation below balanced?
30. Complete the chart by stating if the substance is an element or compound, how many elements
are in the substance, and the total number of atoms that make up the substance.
Substance
O
O2
CO
NH3
Cl2
Element
or
Compound?
How many
elements?
How
many
atoms?