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WorksheetsForce and Motion
Total questions: 50
Worksheet time: 2hrs 38mins
Name
Class
Date
1.
which force produces a change in motion?
a)
unbalanced force
b)
balanced force
c)
gravitational force
d)
frictional force
2.
<--------8N 4N-------->
a)
2N
b)
12N
c)
4N
d)
32N
3.
Two students are in a baseball game. First student hits a ball hard and it has a greater acceleration than the 2nd student who bunts the ball lightly.
a)
1st Law
b)
2nd Law
4.
Why would you weigh less on the moon?
a)
less air
b)
less sunlight
c)
there is no water on the moon
d)
less gravitational pull
5.
Gravity attracts all objects towards one another.
a)
False
b)
True
c)
It depends
d)
I don't care
6.
What is the SI unit used to measure weight?
a)
grams
b)
Liters
c)
pounds
d)
newtons
7.
Forces that have a net force of zero and the object's movement is not effected.
a)
Balanced Forces
b)
Unbalanced Forces
8.
As distance between two objects increase the pull of gravity
a)
Increases
b)
Decreases
c)
Stays the same
9.
A force of attraction between 2 object that is directly related to mass and indirectly related to distance.
a)
mass
b)
weight
c)
gravity
d)
kilogram
10.
Which of the following will not change in different gravitational fields?
a)
wieght
b)
force
c)
mass
d)
pounds
11.
Which of the following will change with different gravitational forces?
a)
mass
b)
amount of matter in an object
c)
weight
d)
kilograms
12.
It takes more force to accelerate an elephant than a hawk because a hawk has less mass. This is an example of
a)
Newton's 1st law, the law of inertia
b)
Newton's second law, the law of acceleration
c)
Newton's third law, the law of action reaction
d)
The law of universal gravitation
13.
The two things that affect the amount of gravity acting between two objects are
a)
weight and distance
b)
strength and direction
c)
force and amount of roughness
d)
mass and distance
14.
If a cheetah runs 180 miles in 3 hours, what is its average speed?
a)
60 hours
b)
60 miles
c)
60 miles/hour
d)
60 miles/second/second
15.
James walked 14 miles at an average speed of 4 miles/hour. How long did it take him to walk 14 miles?
a)
18 hours
b)
3.5 hours
c)
18,000 minutes
d)
3.5 seconds
16.
What is the net force on the block? (click on the words to view the picture)
a)
5 Newtons up
b)
5 Newtons down
c)
15 Newtons up
d)
15 Newtons down
17.
Which describes velocity?
a)
Speed with direction
b)
The same thing as speed
c)
how fast something is moving
18.
Find the average speed of a train that traveled 540 km in 6 hours?
a)
80 km/h
b)
100 km/h
c)
90 kn/h
d)
3240 km/h
19.
__________ is the change in speed or direction of an object's motion.
a)
velocity
b)
acceleration
c)
force
d)
position
20.
What do you need to measure to find the speed of a moving car?
a)
distance and time
b)
speed and direction
c)
direction and time
d)
distance and momentum
21.
Which example shows NO acceleration?
a)
going straight at a constant speed
b)
going straight while slowing down
c)
speeding up
d)
circling at at constant speed
22.
If these boys are pulling with the same amount of force, is it a balanced or an unbalanced force?
a)
Balanced force
b)
Unbalanced force
23.
A picture is hanging on a wall and does not move.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
None of them
24.
Scott travels north 6 miles and then goes west 5 miles before coming straight back south 3 miles. What is his distance?
a)
6
b)
8
c)
10
d)
14
25.
For every action there is an equal and opposite reaction.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
None of them
26.
Acceleration is produced when a force acts on a mass. The greater the mass (of the object being accelerated) the greater the amount of force needed (to accelerate the object).
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
None of them
27.
An object at rest will remain at rest unless acted on by an unbalanced force. An object in motion continues in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
None of them
28.
How would you describe the mass of a sofa?
a)
the weight in newtons
b)
the volume of the sofa
c)
the amount of matter in the sofa
d)
the color of the sofa
29.
What object does it take the most force to push?
a)
car
b)
plane
c)
skateboard
d)
bicycle
30.
An object at rest will _______ if no outside forces are applied.
a)
Stay at rest
b)
Increase Velocity
c)
Decrease Mass
31.
A greater applied force is required to move an object with a greater mass than one with a smaller mass.
a)
True
b)
False
32.
The SI units for force are...
a)
Kilograms
b)
Newtons
c)
Meters per second
d)
Pounds
33.
A crumpled piece of paper hits the ground before a flat sheet of paper because
a)
the acceleration of gravity is greater on the crumpled paper.
b)
there is more air resistance against the flat paper.
c)
the crumpled paper is more massive
d)
the crumpled paper is less massive.
34.
According to Newton’s first law of motion, a moving object that is not acted on by an unbalanced force will
a)
remain in motion.
b)
eventually come to a stop.
c)
change its momentum.
d)
accelerate.
35.
Which of the following explains the difference between speed and velocity?
a)
One has motion, and the other does not.
b)
One has direction, and the other does not.
c)
One involves time, and the other does not.
d)
One involves acceleration, and the other does not.
36.
A hiker’s velocity begins at 1.8 m/s uphill and changes to 1.5 m/s uphill. How do you know that the hiker has a negative acceleration?
a)
His direction changed.
b)
His direction was unchanged.
c)
His speed increased.
d)
His speed decreased.
37.
How does Newton’s third law explain how a rocket takes off?
a)
The rocket’s acceleration is positive, while the gasses acceleration is negative but the direction is the same.
b)
The rocket is at rest until ignition.
c)
The hot gasses move in one direction, while the rocket moves in the opposite direction but with equal force.
38.
A person in car slides to the right when going through a very sharp left turn on the highway.
a)
1st Law
b)
2nd Law
39.
Which law states that if I push against a wall, the wall pushes against me?
a)
Law 2
b)
Law 3
40.
Pushing a child on a swing is easier than pushing an adult on the same swing.
a)
1st Law
b)
2nd Law
41.
A soccer player kicks a ball with their foot and their toes are left stinging.
a)
2nd Law
b)
3rd Law
42.
A student leaves a pencil on a desk and it stays there until I pick it up.
a)
1st Law
b)
2nd Law
43.
What is the force applied to all objects on Earth?
a)
Earthquakes
b)
Gravity
44.
If there is a big mass, it would need a stronger force to accelerate it. Which law does this describe?
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
45.
If you are driving forward and suddenly break, what would happen to your body and which law does that demonstrate?
a)
go back, 1st Law
b)
move forward, 1st Law
46.
Who is the scientist who came up with the Laws of Motion?
a)
Sir Issac Newton
b)
The Greeks
c)
John Dalton
d)
Sir John Newt
47.
If a baseball and a cannonball are dropped from the same height at the same time, which ball will hit the ground first?
a)
the cannonball
b)
the baseball
c)
The balls land at the same time.
d)
the ball with the larger volume
48.
The tendency of an object at rest to stay at rest unless it is acted upon by a force is ___________________
a)
inertia
b)
motion
c)
gravity
d)
lubricant
49.
Force = Mass x Acceleration
How much force is needed to accelerate a 130 pound runner at 2 m/sec?
How much force is needed to accelerate a 130 pound runner at 2 m/sec?
a)
9800 N
b)
2000 N
c)
260 N
d)
65 N
50.
What is the value of g on Earth?
a)
9.81 m/s2
b)
9.81 N
c)
9.81 m
d)
9.81 s/m2
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