chp 7 newton's 3rd law flashcardizz review

Front

What is Newton's Third Law of Motion?

Back

For every action, there is an equal and opposite reaction.

Front

What happens when a horse pulls on a wagon at rest?

Back

The wagon pulls back equally on the horse, but if the horse pulls harder than the static friction, the wagon will move.

Front

True or False: The force exerted by a cannon on a cannonball is equal and opposite to the force exerted by the cannonball on the cannon.

Back

True

Front

True or False: To make a cart move forward, a horse must pull harder on the cart than the cart pulls on the horse.

Back

False

Front

What does it mean when we say forces are equal and opposite?

Back

It means that the forces act on two different objects and do not cancel each other out.

Front

Why don't we sense the Earth's acceleration towards a falling boulder?

Back

Because Earth's huge mass causes its acceleration to be infinitesimally small.

Front

What is an example of action and reaction forces in everyday life?

Back

When you jump off a small boat, you push the boat backward as you move forward.

Front

What is the significance of mass in Newton's Third Law?

Back

The mass of an object affects the acceleration it experiences when a force is applied.

Front

What is static friction?

Back

Static friction is the force that keeps an object at rest and prevents it from moving when a force is applied.

Front

How do action and reaction forces relate to motion?

Back

They do not cause motion in a single object but rather describe interactions between two objects.