WorksheetsNewton's 3rd Law
Total questions: 11
Worksheet time: 55mins
A force is a push or pull that is required to change the _____.
composition of an object.
the state of motion of an object.
color of an object.
temperature of an object.
Whenever one object exerts a force on a second object, the second object also exerts a force on the first that:
is opposite in direction.
occurs at the same time.
is equal in magnitude.
all the above.
The force that propels a heavy truck along a level highway is provided by
gravity.
Newton's laws of motion.
the highway pushing back on the wheels of the truck.
the air resistance.
Earth pulls on the Moon with a certain force. Compared to that force, the pull of the Moon on Earth is:___________.
much less
a little less
the same
a little greater
much greater
A boulder falls due to the force of gravity. The reaction to the force on the boulder is
a)air resistance.
the boulder pulling up on Earth.
the boulder being pulled downward by Earth
Actually, all of these
When a hammer is swung against a nail with a force of 400 N, the nail moves into a piece of wood. The force of the nail back onto the hammer must be
less than 400 N, because the nail moved
400 N
more than 400 N, because the nail moved
zero; because the nail moved.
An insect has a collision with the windshield of a massive high-speed truck. The force of impact on the insect is ________ the force on the truck because_________.
less than, because the insect's mass is so much less.
the same, because they are action-reaction forces.
the same, because gravity acts on both the truck and the insect.
more than, because the mass of the truck is so much greater.
When an insect has a collision with a massive, high speed truck, the acceleration of the insect is _____________ the acceleration of the truck, because ______________.
less than, because the insect's mass is so much less than the truck.
the same, because gravity acts on both the truck and the insect.
the same, because they are action-reaction forces.
greater than, because the mass of the truck is so much greater than the insect.
The net force on a kicked soccer ball can be zero when
it is not fully inflated.
it is kicked by two feet with equal and opposite amounts of force.
it is kicked in the same direction by two feet.
it is kicked by two feet at right angles (90°) to each other
Choose all the answers that correctly complete this sentence:
The weight of a piano is
the same as its mass.
measured in kilograms (kg).
measured in Newtons (N).
the force of gravity acting on the piano.
equal to the force of friction between the piano and the floor.
On a cold, rainy day, you find yourself in a car with a dead battery. You must push the car to move it. Could you move the car by remaining comfortably inside and pushing against the dashboard?
No, because there would be no net force on the car.
No, because my mass is added to the car's mass, and the force would cause acceleration.
Yes, because there would be no friction between me and the car.
Yes, because the dashboard is connected to the wheels, so it would move.
