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Forces And Motion
Test Description: Forces and Motion review
Instructions: Answer all questions to get your test result.
1) Which of the following is NOT an example of acceleration?
A
a leaf falling at constant speed
B
a car slowing down
C
a dog running faster and faster
D
a skater spinning
2) You are on a bus traveling 47 m/s forward. You go to the back of the bus to visit your friend you are walking at a speed of 3 m/s. What is your resultant velocity?
A
44 m/s forward
B
15.67 m/s forward
C
50 m/s forward
D
15.67 m/s backward
3) Jean jogs on a path that is 25 kilometers long to get to the park that’s closest to her house. The park is south of the path. If it takes Jessica 2.5 hours, what is her speed?
A
62.5 km/h
B
10 km
C
10 km/h
D
10 km/s
4) As the ________________ between objects increases, the gravitational force between them decreases
A
mass
B
volume
C
distance
D
density
5) The gravitational force will be strongest between two objects which have __________________ mass.
A
larger
B
the same
C
equal
D
smaller
6) A car can accelerate from 0-60 m/s in 15 seconds. What is the average acceleration of the car
A
60 m/s/s
B
4 m/s/s
C
60 m/h/s
D
4 m/h/s
7) A group of students is playing tug-of-war. The students on both sides of the rope are pulling with equal force. This is an example of _________________________________.
A
compression
B
balanced forces
C
terminal velocity
D
unbalanced forces
8) What are the two components of projectile motion?
A
vertical motion
B
horizontal motion and vertical motion
C
Vertical and gravitational motion
D
there is only one component
9) When an astronaut is on the moon his...
A
his mass changed
B
both his mass and his weight stayed the same
C
weight stayed the same
D
his mass stayed the same while his weight changed
10) What is sliding friction?
A
Placing objects on wheels, casters, or other rolling devices generally makes them easier to move.
B
The force applied to the object is not strong enough to set it in motion
C
opposes the motion of objects through liquids and gases.
D
when an object is pushed or pulled across a surface.
11) Which usually produces the least amount of friction?
A
sliding friction
B
both produce the same
C
none of the above
D
rolling friction
12) What is friction?
A
a force that opposes motion between two surfaces that are touching
B
the result of two forces pulling the object away from each other
C
When an object isn’t moving, it’s in equilibrium
D
the result of two forces pushing against the same object
13) During a game of tug of war, one side pulls with 6 N of force to the right. The other side pulls with 3 N of force to the left. What is the net force?
A
3 N left
B
6 N right
C
9 N right
D
3 N right
14) Two people are trying to push away a box of rotting eggs. Sam pushes right with a force of 5 N and Omar pushes left with a force of 5 N. What is the net force?
A
10 N left
B
10 N right
C
5 N right
D
0 N
*select an answer for all questions
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