Unit 3 Test Study Guide (AJW)

Front

What is the effect of gravity that keeps objects moving in a circular path?

Back

Centripetal force.

Front

How does the gravitational pull of the moon affect Earth?

Back

It causes tides in the oceans.

Front

What happens to objects falling on the moon due to its lower mass compared to Earth?

Back

They fall slower due to lower gravity.

Front

What are vectors?

Back

Quantities with both magnitude and direction.

Front

If a 500 g ball and a 200 g ball are dropped from a tower without air resistance, which will hit the ground first?

Back

Both will hit the ground at the same time.

Front

What is gravitational pull?

Back

The force by which a planet or other celestial body attracts objects toward its center.

Front

Define inertia.

Back

The tendency of an object to resist changes in its state of motion.

Front

What is the difference between centripetal force and centrifugal force?

Back

Centripetal force acts towards the center of a circular path, while centrifugal force is perceived as acting outward on a body moving in a circular path.

Front

What is the formula for calculating gravitational force between two objects?

Back

F = G * (m1 * m2) / r^2, where F is the gravitational force, G is the gravitational constant, m1 and m2 are the masses, and r is the distance between the centers.

Front

What is the role of air resistance in falling objects?

Back

Air resistance opposes the motion of falling objects, affecting their acceleration and terminal velocity.