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WorksheetsNewton's Laws
Total questions: 57
Worksheet time: 1hrs 9mins
An archer pulls the bowstring back, then releases the string and the arrow flies forward. Pulling the string back is the...
action force
reaction force
net force
inertia
When two equal forces act in opposite directions on an object, they are called ______________________.
frictional force
balanced force
centripetal force
gravitational force
The inertia of an object is related to its:
mass and speed
mass and force
mass only
speed only
The term that means “all of the forces together on an object” is:
normal force
net force
frictional force
weight
The property of matter that resists changes in motion is:
inertia
speed
force
acceleration
As the mass of an object is increased, what happens to its inertia?
stays the same
increases
decreases
mass and inertia is not related
Which of the barbells in Figure 6-1A has the most inertia?
The 10-kg barbell
The 20-kg barbell
The 30-kg barbell
They all have the same inertia
If each of the barbells in Figure 6-1A were pushed with a force of 100 newtons, which would be harder to move?
The 10-kg barbell
The 20-kg barbell
The 30-kg barbell
They would all move equally
A ball is rolling down a level sidewalk. As it roll, it slows down and stops. Why?
Continued motion requires a force.
Frictional force acts on the ball to stop it.
The net force on a moving ball is always zero.
The force that started it moving was taken away.
An object moving with constant speed has:
a net force greater than zero.
a net force equal to zero.
a net force less than zero.
a constant force
Changes in motion come from
mass only
inertia
balanced forces
unbalanced forces
Changes in motion come from
inertia and momentum
neither inertia nor momentum
momentum but no inertia
inertia but no momentum
A ball with a mass of 1 kg is moving in a straight line at the same speed as a ball with a mass of 10 kg. Both balls are brought to rest in 4.0 seconds. What is true of the force required to stop the balls?
It takes less force to stop the 1 kilogram ball because it has
less inertia.
It takes more force to stop the 1 kilogram ball because it has
more inertia.
It takes the same force to stop both balls because they moving at the same speed.
It takes less force to stop the 10 kilogram ball because it has less inertia.
A 0.15-kilogram baseball and a 7.25-kilogram bowling ball are both rolling along at 3 m/s. Which object is easier to stop and why?
The bowling ball because it has less inertia
The baseball because it has more inertia
The bowling ball because heavy objects are naturally prone to
stop on their own
The baseball because it has less inertia
Compare the inertia and momentum of a 0.15-kilogram baseball moving at 50 m/s with the inertia and momentum of a 7.25-kilogram bowling ball moving at 1 m/s.
The baseball has more inertia, but the bowling ball has more momentum
The baseball has both more inertia and more momentum
The bowling ball has more inertia, but the baseball has more
momentum.
The bowling ball has both more inertia and more momentum
A tow truck pulls a 2,000-kg car with a net force of 4,000 N. What is the acceleration of the car?
0.5 m/s2
2 m/s2
200 m/s2
2,000 m/s2
A 200-kg rocket accelerates at 50 m/s2. How large is the force required to cause an acceleration of this size?
1/4 N
4 N
1,000 N
10,000 N
A cart is rolling down a special ramp where there is no friction at all. What will happen if the amount of mass on the cart is increased?
The cart will accelerate less.
The cart’s acceleration will not be affected
The cart will accelerate more.
The cart will move at a constant velocity
Cheung pushes on a toy car, and it accelerates at 0.22 meters per second per minute. Carlos pushes on the same toy car with twice as much force as Cheung. Compare the acceleration when Carlos pushes the car to when Cheung pushes the car.
The acceleration is 1/4 as much
The acceleration is 1/2 as much.
The acceleration is twice as much.
The acceleration is the same.
A 2.0-kg ball rolls down a ramp. If the ball accelerates at a rate of 12 m/s2, the net force causing the acceleration is:
6 newtons.
10 newtons.
12 newtons.
24 newtons.
Brandon and his skateboard together have a mass of 100 kg. How fast will he accelerate on his skateboard if he’s pushed forward with a net force of 100 N?
0 m/s2
1 m/s2
100 m/s2
10000 m/s2
A 20-kg dog on ice skates is accelerating at 2 m/s2. What is the net force on the dog?
2 N
10 N
22 N
40 N
When a net force of 2 newtons is applied, the object graphed in Figure 6-2A accelerates at:
1 m/s2
2 m/s2
3 m/s2
4 m/s2
The mass of the object being accelerated in Figure 6-2A is:
0.2 kg
0.5 kg
1 kg
2 kg
A ball attached to a string is being swung in a clockwise circular path as shown in Figure 3-1. Assume the string breaks at point A. In which direction will the ball be traveling an instant later?
direction a
direction b
direction c
direction d
Momentum is a property of an object and cannot be transferred from that object to another object.
True
False
Objects in Earth's orbit appear to be weightless because they are in free fall.
True
False
The momentum of a 5,000-kg truck that is standing still is greater than the momentum of a 3,000-kg truck that is also at rest.
True
False
Gravity causes all falling objects to accelerate at a rate of 98 m/s2.
True
False
The greater an object's mass, the weaker the gravitational force on it.
True
False
Pushing a box up a hill, you have to overcome static friction.
True
False
A box doesn't move when you push it because of static friction.
True
False
Letting go of a balloon full of air is demonstrating Newton's ______ _______ ________ _________ because the air comes out of the back and the balloon moves forward.
1st law of motion
2nd law of motion
3rd law of motion
13th law of motion
In referring to how much matter a body contains, we use the term:
Volume
Weight
Mass
A cannonball with a mass of 0.5 kg is flying at an acceleration of 10 m/sec/sec. What is its force?
50 Newtons
5 Newtons
20 Newtons
9.5 Newtons
This type of force is when one object pushes or pulls on another object by touching it
Applied
gravity
magnetic
tension
