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WorksheetsNewton's Laws
Total questions: 55
Worksheet time: 41mins
What is it?
Pull
Friction
Push
Heavy
A ____________ is a push or a pull on an object.
friction
force
magnet
gravity
Forces that have a net force of zero Newtons
Balanced force
Unbalanced force
Suppose that an astronaut throws a baseball in outer space at a location far from significant influences of gravity and air resistance. One would expect that the baseball would ____.
eventually stop since all objects ultimately "lose their steam"
eventually stop as its inertia slowly becomes used up
continue in motion with the same speed and direction
either a, b, or c -- depending on whether the astronaut continues to push it
All objects have inertia
True
False
Inertia depends on ______
Velocity
Speed
Distance
Mass
A skateboard rolls down a hill, reaches the level surface and eventually comes to a stop. The fact that the skateboard ultimately stops is best explained by ____.
an unbalanced force would be required to keep the sled moving forward at constant speed
the presence of an unbalanced force (e.g., friction) can cause a moving object to stop
the presence of inertia causes it to stop
the natural tendency of any object is to ultimately stop
Mac and Tosh are arguing in the cafeteria. Mac says that if he flings the jello with a greater speed it will have a greater inertia. Tosh argues that inertia does NOT depend upon speed, but rather upon mass. Who is correct?
Mac
Tosh
Neither
Both
More mass = More inertia
True
False
The rate something is traveling in a certain time
(example: miles per hour)
velocity
inertia
speed
The rate something is traveling in a certain direction.
speed
inertia
velocity
The amount of MATTER in an object.
momentum
velocity
mass
Inertia is the tendency of an object to resist a change in its ___________.
temperature
shape
size
motion
the tendency of an object to resist a change in its motion
acceleration
inertia
mass
frame of reference
A force has both strength and _____.
power
direction
color
balance
When Izzy and Zoe pull on the rope with the same amount of force, the forces are _____.
increased
unbalanced
balanced
decreased
Velocity is speed with __________________________.
a unicycle helmet
direction
fight
What is the net force?
3 N
3 N, right
17 N, right
3 N, left
Whenever an object exerts a force on another object, the second object exerts a force of the same magnitude, but in the opposite direction to that of the first object.
Always true
Sometimes true
Never true
Forces always occur
as single quantities
in pairs
by themselves
A dog plays with a ball. Consider the action force the dog touching the ball. What is the reaction force?
The friction of the ground on the ball.
The ball pushing the ground.
The ground pulling the dog.
The ball touching the dog.
A person is attracted towards the center of Earth by a 440N gravitational force. The force with which Earth is attracted toward the person is
More than 440N
Less than 440N.
The same, 440N.
An unfortunate bug splatters against the windshield of a moving car. Compared to the force of the car on the bug, the force of the bug on the car is
larger.
the same.
smaller
need more information to say.
If a horse pulls on a wagon at rest, the wagon pulls back equally on the horse. Can the wagon be set into motion?
Yes, because there is a net force acting on the wagon.
Yes, because there is a time delay between action and reaction.
No, because the forces cancel each other.
Yes, because the horse's pull on the wagon is larger than the wagon's pull on the horse.
A large truck and a small car traveling at the same speed have a head-on collision. The vehicle to undergo the greater change in velocity will be
the small car
the large truck
neither, both are the same.
According to Newton's third law, if you push gently on something, it will push
gently on something else.
on you only if you aren't moving.
gently on you
on something only under the right conditions.
A force is exerted on the tires of a car to accelerate the car along the road. The force is exerted by the
road.
engine.
tires.
air.
A man pulls on a rope in a tug-of-war with an elephant . Each pulls with 500N of force. What is the tension in the rope?
0N
250N
25.0N
500N
If your car runs out of gas, why can’t you push on the car’s windshield from the inside to move it?
In order for the car to move, a force must be exerted by you on the car’s windshield.
In order for the car to move, a force must be exerted by the car’s windshield on you.
In order for the car to move, an outside force must be exerted on the car.
In order for the car to move, a force must be exerted by the car on the ground.
In order to make a cart move forward, a horse must pull harder on the cart than the cart pulls on the horse.
TRUE
FALSE
A fighter hits a punching bag and brings it from rest up to a speed of 40 m/s in 0.08 s. What is the force of impact on the punching bag if its mass is 100 kg?
50 N
500 N
5000 N
50000
Consider the picture shown above. Which is an action-reaction pair?
A and C upon B, and B upon A and C
A upon B and B upon A
B upon C and A upon C
A, B, and C are action-reaction forces
Newton's Third Law is also known as...
The Law of Inertia
The Law of Acceleration
The Law of Conservation of Momentum (Force Pairs)
