Free Fall and Circular Motion

Front

What is the force that causes an object to move in a circle?

Back

Centripetal force.

Front

What is the centripetal force that causes a satellite to move in a circle?

Back

Gravity (Gravitational force).

Front

What is the acceleration due to gravity near the surface of Earth?

Back

9.8 m/s².

Front

What is any force that causes an object to move in a circle called?

Back

Centripetal force.

Front

What is the relationship between centripetal force and gravitational force for satellites?

Back

Gravitational force acts as the centripetal force for satellites.

Front

What happens to an object in free fall?

Back

It accelerates towards the Earth due to gravity.

Front

What is the formula for calculating centripetal acceleration?

Back

a_c = v²/r, where v is the velocity and r is the radius.

Front

What is the effect of increased speed on centripetal force?

Back

Increased speed requires greater centripetal force to maintain circular motion.

Front

What is the role of friction in circular motion?

Back

Friction can provide the necessary centripetal force for objects moving in a circle.

Front

What is the difference between balanced and unbalanced forces?

Back

Balanced forces do not change an object's motion; unbalanced forces cause acceleration.