Circular Motion

Front

The velocity is always _____ to the line of a circle.

Back

tangent

Front

Calculate the mass of an object if it took 20 N to rotate it in a circle with a radius of 2 meters with a velocity of 4 m/s.

Back

2.5 kg

Front

Centripetal acceleration always points

Back

towards the center of the circle

Front

Which of the following is the unit for centripetal force?

Back

N

Front

What is the direction of the velocity at point B, if the ball is revolving clockwise?

Back

down

Front

What is circular motion?

Back

The motion of an object in a circular path.

Front

What is centripetal force?

Back

The force that keeps an object moving in a circular path, directed towards the center of the circle.

Front

What is the formula for centripetal acceleration?

Back

a_c = v^2 / r, where v is the velocity and r is the radius.

Front

What happens to centripetal force if the radius of the circle increases?

Back

Centripetal force decreases if the speed remains constant.

Front

What is the relationship between velocity and radius in circular motion?

Back

For a constant centripetal force, an increase in radius results in a decrease in velocity.