Circular Motion by Physics in Motion

What is the definition of centripetal force?

• A force that makes an object move in a circle

• A force that pulls an object towards the center of the Earth

• A force that keeps an object in orbit around the Earth

• A force that causes an object to accelerate

Which forces can act as centripetal forces?

• Friction, tension, the normal force, or gravity

• Only friction and tension

• Only gravity

• Only the normal force

Tags

NGSS.HS-PS2-1

What is the net force acting on the water in the swinging bucket?

• Gravity and tension

• Friction and tension

• Gravity and friction

• Gravity and normal force

Tags

NGSS.HS-PS2-1

What force keeps a satellite orbiting the Earth?

• Centrifugal force

• Frictional force

• Tension force

• Gravity

Tags

NGSS.HS-ESS1-4

NGSS.HS-PS2-4

What is the direction of tangential velocity if tension lets up?

• Towards the center of the circle

• In a straight line tangent to the circle

• Opposite to the direction of motion

• Perpendicular to the radius of the circle

What is the period of revolution?

• The time it takes for an object to go in a full circle

• The distance traveled around the circumference

• The tangential velocity of an object

• The radius of the circle

What is centripetal acceleration?

• The acceleration of an object moving in a straight line

• The acceleration of an object moving in a circular path

• The acceleration of an object due to gravity

• The acceleration of an object due to friction

What causes the feeling of being slammed against the side of a car during a sharp turn?

• Centrifugal force

• Inertia

• Frictional force

• Gravity

Tags

NGSS.HS-PS2-1

What is the tangential velocity of an object traveling in a circle?

• The distance around the circumference divided by the time it takes to travel around the circle

• The acceleration of the object divided by the radius of the circle

• The speed of the object divided by the radius of the circle

• The mass of the object divided by the centripetal force

Which represents the acceleration of the ball?

• A
• B
• C
• D

Tags

NGSS.HS-PS2-1