TEST NAME: 7th Grade Forces & Motion Learning Check
TEST ID: 80250
GRADE: 07
SUBJECT: Life and Physical Sciences
TEST CATEGORY: Send Test to Gradebook
7th Grade Forces & Motion Learning Check
Page 1 of 7
01/09/13, 7th Grade Forces & Motion Learning Check
Student: Class:
Date:
1.
A force that opposes motion
A.
Balanced Force
B.
Speed
C.
Friction
2.
Speed in a given direction
A.
Unbalanced Force
B.
Velocity
C.
Motion
3.
A measurement of the amount of matter in an object
A.
Mass
B.
Gravity
C.
Weight
4.
A measurement of the effect of gravity on an object's mass
A.
Mass
B.
Gravity
C.
Weight
5.
A change in position, measured by distance and time
A.
Motion
B.
Velocity
C.
Unbalanced Force
7th Grade Forces & Motion Learning Check
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6.
The distance traveled by a moving object per unit of time (s=d/t)
A.
Friction
B.
Speed
C.
Balanced Force
7.
A nonzero net force, which changes an object's motion
A.
Force
B.
Inertia
C.
Unbalanced Force
8.
The force that pulls objects toward Earth
A.
Mass
B.
Gravity
C.
Weight
9.
Word that describes the tendency of an object to remain in motion or stay at rest
A.
Inertia
B.
Unbalanced Force
C.
Velocity
10.
Equal forces acting on an object in opposite directions
A.
Friction
B.
Speed
C.
Balanced Force
11.
Any push or pull
A.
Weight
B.
Force
C.
Inertia
7th Grade Forces & Motion Learning Check
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12.
A body in motion tends to continue in the same motion. What is this rule known
as?
A.
Momentum
B.
Newton's Third Law
C.
Newton's First Law
D.
Action and Reaction
13.
Some kids are playing tug­of­war, a contest in which each team tugs on a rope to
pull the other team across a line. Everyone is tugging on the rope, but no one is
moving because
A.
The net force of the two teams is zero.
B.
The rope resists any change in motion.
C.
The children do not have enough mass to create force.
D.
There is too much friction for the rope to move.
14.
Which of the following is not a consideration in Newton's Second Law?
A.
Acceleration
B.
Mass
C.
Force
D.
Velocity
15.
Which describes velocity?
A.
3 meters away
B.
15 meters per second
C.
15 meters to the north
D.
22 meters per second east
7th Grade Forces & Motion Learning Check
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16.
Which of the following is the reason that objects have weight on Earth?
A.
Gravitational force of the Milky Way
B.
Gravitational force of the Moon
C.
Gravitational force of the Sun
D.
Gravitational force of Earth
17.
Which of the following best describes what is happening to the books in the
picture?
A.
The books are accelerating.
B.
The normal force is too great.
C.
The books are pushing on the shelf.
D.
The forces on the book are not balanced.
18.
An unbalanced force can cause an object's motion to change by
A.
changing direction or speed; starting but not stopping motion.
B.
changing direction or speed; starting or stopping motion.
C.
changing direction or speed; stopping but not starting motion.
D.
changing direction or speed only.
19.
I run 20 meters in 5 seconds. What is my speed?
A.
2.0 m/s
B.
6.5 m/s
C.
100 m/s
D.
4.0 m/s
7th Grade Forces & Motion Learning Check
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20.
Velocity of a Falling Object
Time(s)
Velocity (m/s)
1
9.8
2
19.6
3
29.4
4
39.2
Use the table above to answer the following question.
Each second, gravity causes the object's downward velocity to increase by
A.
0 m/s
B.
9.8 m/s
C.
4 m/s
D.
39.2 m/s
21.
Mr. Ward is having trouble moving his chair across the carpeted floor. Which
force is making moving the chair difficult?
A.
Magnetic force
B.
Electric force
C.
Surface tension
D.
Friction
22.
Explain the difference between balanced and unbalanced forces.
23.
Give an example of an unbalanced force causing a change in motion.
7th Grade Forces & Motion Learning Check
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24.
Mrs. Basham has three different types of balls. Each ball is about the same size.
Ball 1 is a wooden ball. Its mass is 28 g.
Ball 2 is a golf ball. Its mass is 46 g.
Ball 3 is a metal ball. Its mass is 100 g.
Mrs. Basham held out her arms and dropped all 3 balls at the same time from the
same height. In what order will the balls hit the floor?
A.
Ball 1, then Ball 2, then Ball 3
B.
Ball 3 will hit first, followed by Ball 1 and Ball 2 hitting the floor at the same time.
C.
Ball 3, then Ball 2, then Ball 1
D.
All three of the balls will hit the floor at the same time.
25.
Mrs. Basham has three different types of balls. Each ball is about the same size.
Ball 1 is a wooden ball. Its mass is 28 g.
Ball 2 is a golf ball. Its mass is 46 g.
Ball 3 is a metal ball. Its mass is 100 g.
Mrs. Basham held out her arms and dropped all 3 balls at the same time from the
same height.
Explain your thinking on the order of the balls being dropped. What rule or
reasoning did you use to make your prediction?
7th Grade Forces & Motion Learning Check
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