WorksheetsUnit 1 Motion and Forces
Total questions: 30
Worksheet time: 31mins
Name
Class
Date
1.
The greater the mass of an object,
a)
The easier the object starts moving.
b)
The greater its inertia.
c)
The more balanced it is.
d)
The more space it takes up.
2.
Which of the following statements is true based on the picture if the skier is accelerating?
a)
Friction between the snow and the skis is stronger than gravity.
b)
Friction and gravity are balanced forces.
c)
Friction between the snow and the skis is weaker than gravity.
d)
If the skier increases her friction, she will go faster.
3.
According to Newton’s third law of motion, when a hammer strikes and exerts force on a nail, the nail
a)
Creates a friction with the hammer.
b)
Disappears into the wood.
c)
Exerts an equal and opposite force on the hammer.
d)
Moves at a constant speed.
4.
If you are an astronaut slowly drifting away from the space station, what could you do to drift back to the station?
a)
Throw one of your tools towards the station
b)
Throw one of your tools away from the station
c)
Throw one of your lighter tools up above you
d)
Face away from the station and kick your feet
5.
When a large truck pushes a small car with a given force, the small car is applying…
a)
A stronger force in the same direction
b)
A weaker force in the opposite direction
c)
An equal force in the opposite direction
d)
A weaker force in the same direction
6.
Which best explains why we are able to accelerate forward when starting to run?
a)
No acceleration takes place. Runners are always at a fixed velocity.
b)
The foot not touching the ground propels the runner forward.
c)
The striking foot pushes backward against the ground. The friction with the ground provides an equal and opposite force forward.
d)
The runner’s upper body quickly leans forward, causing the entire body to begin accelerating forward.
7.
Which type of energy is best illustrated at point (c)?
a)
potential energy
b)
kinetic energy
c)
resistant energy
d)
electrical energy
8.
Based on their mass, which of the following objects would have more kinetic energy rolling down a street?
a)
a basketball
b)
a beach ball
c)
a bowling ball
d)
a softball
9.
Student A and Student B are racing marbles. Predict who you think will win.
a)
Student A will win because his marble has a greater mass so it will have more kinetic energy.
b)
Student B’s marble will win because it is lighter, so it will go faster
c)
The students will tie because their marbles are the same size and shape
d)
Student B will win because student A’s marble will take longer to speed up,
10.
Which of these diagrams show a net force of 30 N going East?
a)
A
b)
B
c)
C
d)
D
11.
Carolyn wants to kick the soccer ball in the direction shown by the arrow. Where should she kick the ball?
a)
Point A
b)
Point B
c)
Point C
d)
Point D
12.
Students are studying how mass and velocity affect the kinetic energy of an object. The students raced five cars. The winning car has the most kinetic energy. The graph shows the results for the race. Choose the correct answer below that demonstrates the correct finish order of the cars with the highest kinetic energy to the lowest.
a)
1, 2, 3, 4, 5
b)
2, 4, 3, 5, 1
c)
5, 4, 3, 2, 1
d)
3, 2, 4, 1, 5
13.
Which graph correctly illustrates the relationship between mass and kinetic energy?
a)
A
b)
B
c)
C
d)
D
14.
Which are the correct labels for the force diagram?
a)
Arrow 1 is the table, arrow 2 is gravity
b)
Arrow 1 is inertia, arrow 2 is the table
c)
Arrow 1 is gravity, arrow 2 is inertia
d)
Arrow 1 is the table, arrow 2 is inertia
15.
You exert a force of 120 N to push a box down the hallway. Your friend helps by exerting a force of 150 N against the box in the same direction. Which net force do you and your friend exert on the box?
a)
30 N
b)
120 N
c)
150 N
d)
270 N
16.
You exert a force of 150 N to push a table across the room. Your friend pushes with a force of 150 N against the table in the opposite direction. Which net force do you and your friend exert on the table?
a)
0 N
b)
300 N
c)
150 N
d)
30 N
17.
What happens when two forces act in the same direction?
a)
They cancel each other out.
b)
The stronger one prevails.
c)
Their strengths are added.
d)
Their sum divided by two is the total force.
18.
The force of gravity on a person or object on the surface of a planet is called
a)
mass
b)
terminal velocity
c)
weight
d)
free fall
19.
The force that one surface exerts on another when the two rub against each other is called
a)
friction
b)
acceleration
c)
inertia
d)
gravity
20.
A force is described by
a)
The mass of the object on which it acts.
b)
Its strength.
c)
Its inertia.
d)
Its strength and direction.
21.
The following pairs of surfaces are pushed together with the same amount of force. Between which pair of surfaces will friction be the greatest?
a)
Two pieces of sandpaper
b)
Two pieces of waxed paper
c)
A painted surface and a piece of sandpaper
d)
A painted surface and a piece of waxed paper
22.
Why do you lean towards the left when a car turns right?
a)
Because of inertia.
b)
Because of buoyancy.
c)
Because of gravity.
d)
Because of velocity.
23.
Which of Newton's three laws does the following statement satisfy? Every object in motion tends to remain in motion unless an unbalanced force is applied to it.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
All of the above
24.
Which of Newton's three laws does the following example illustrate? If you have a hockey puck sliding along a table, it will eventually come to a stop.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
All of the above
25.
Which of the following represent unbalanced forces?
a)
A book sitting on a shelf.
b)
A car slowing down to stop at a red light
c)
A skateboard sitting at the top of a hill
d)
A parked car
26.
Choose the correct forces below which would result in a zero net force.
a)
Top arrow 12N; Right arrow 12N
b)
Top arrow 8N; Right arrow 12N
c)
Top arrow 10N; Right arrow 6N
d)
Top arrow 6N; Right arrow 10N
27.
Aaron is pushing an empty shopping cart, and Sally is pushing a full shopping cart. Which student is using more force and why?
a)
Aaron is using more force on the empty cart because it has less mass
b)
Sally is using less force because it has a greater mass
c)
Aaron is using less force on the empty cart because it has a greater mass
d)
Sally is using more force because it has a greater mass
28.
Student A says he can throw a baseball further than anyone in his class. He throws the baseball 30 meters. What does Student B have to do to throw a baseball further?
a)
Throw the baseball in a different direction
b)
Use more force on the baseball
c)
Throw the ball higher
d)
Throw a ball that has a greater mass
29.
Two bulldozers exert 600 N of force on a boulder from opposite directions. In which direction will the boulder move?
a)
The boulder will move up and to the right.
b)
The boulder will not move. The forces are balanced.
c)
The boulder will move to the right.
d)
The boulder will move to the left.
30.
Aaron is pushing an empty shopping cart, and Ron is pushing a full shopping cart. Which person is using more force and why?
a)
Aaron is using more force on the empty cart because it has less mass
b)
Ron is using less force because it has a greater mass
c)
Aaron is using less force on the empty cart because it has a greater mass
d)
Ron is using more force because it has a greater mass
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