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Forces - Unit 5
Test Description: Unit 5
Instructions: Answer all questions to get your test result.
1) When you push a toy car down a ramp, the car eventually comes to a stop. A force opposes both the car and the ramp as they slide past each other. What is this force called?
A
Friction
B
Acceleration
C
Inertia
D
Unbalanced Force
2) What unit do Scientists use to measure force?
A
Kilogram
B
Newton
C
Pascal
D
Meter
3) As Newton says in his 3rd Law; for every action there is….?
A
An equal and opposite reaction
B
An equal and different reaction
C
A different force
D
Two different forces
4) With unbalanced forces, the object will move in the direction of the ______ force.
A
Smaller
B
Equal
C
Larger
5) Is gravity a push or a pull?
A
Push
B
Pull
6) Two people are playing tug of war against each other. If both people are pulling the rope with the same amount of force will the rope move?
A
Yes
B
No
7) A player hits a baseball with a bat. The action force is the impact of the bat against the ball. The reaction force is…..?
A
The air resistance of the ball
B
The grip of the players hand on the ball
C
The force of the ball against the bat
8) How do you lower the friction force?
A
By a rough surface
B
By not pushing hard
C
By a smooth surface
D
By pushing down
9) What force holds the planets in motion around the sun?
A
Air Resistance
B
Magnetic
C
Electrical
D
Gravitational
10) You are playing tug of war. Both teams are pulling as hard as they can but the rope is staying still. What kind of force is keeping the rope in the same position?
A
The Force
B
Air Resistance
C
Balanced Force
D
Unbalanced Force
11) All objects in the universe have a gravitational attraction to each other
A
True
B
False
12) If a bowling ball and a feather were dropped at the same time, in a room with no air resistance (vacuum), which object will hit the ground first?
A
The bowling ball
B
They will fall at the same time
C
The feather
D
Neither one will hit the ground
13) A ______ force must act on an object to CHANGE its motion.
A
Gravitational
B
Unbalanced
C
Balanced
D
Electrical
14) Someone is pushing a box 5N West. Someone on the opposite side of the box is pushing the box 7N East. What is the net force?
A
12N East
B
2N West
C
2N East
D
12N West
15) Which of the following would never change no matter where you are in the universe?
A
Pounds
B
Mass
C
Force
D
Weight
*select an answer for all questions
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