Unit 2 Flashcard 3: Gravity and Air Resistance

Front

What is a parachute designed to maximize?

Back

Air Resistance

Front

Complete the sentence: It is not the difference in gravity that causes objects to fall at different speeds, it’s the difference in the amount of _____________.

Back

Air resistance

Front

The more streamlined an object is, the _____________.

Back

Less air resistance

Front

Air resistance pushes against falling objects and _____________.

Back

Slows them down

Front

When dropped from the same distance, which will fall to the floor faster?

Back

Objects with less air resistance will fall faster.

Front

What is gravity?

Back

A force that attracts two bodies towards each other, commonly experienced as the force that pulls objects towards the Earth.

Front

What is air resistance?

Back

A force that opposes the motion of an object through the air.

Front

How does mass affect falling objects?

Back

Mass does not affect the rate of fall in a vacuum; however, in the presence of air, more massive objects may experience less relative air resistance.

Front

What is the relationship between air resistance and speed?

Back

As the speed of an object increases, the air resistance acting on it also increases.

Front

What happens to a falling object when air resistance equals the force of gravity?

Back

The object reaches terminal velocity and falls at a constant speed.