If the Earth were further from the sun, the force of attraction between them would be

• Unchanged, gravitational force is constant

• Increased, force and distance are directly related

• Decreased, force and distance are directly related

• Decreased, force and distance are inversely related

The centripetal force in this experiment is

• friction between the tube and string

• the velocity of the stopper

• the tension in the string

• the weight of the stopper

If you double the velocity of a car going around a turn, the centripetal acceleration of the car is

• doubled

• halved

• quadrupled

• quartered

If you double the mass of a car going around a curve, the centripetal acceleration is

• doubled

• halved

• quadrupled

• unchanged

Which three statements are true?

• If you increase the Fc you increase centripetal acceleration.

• If you increase the Fc you decrease centripetal acceleration.

• The mass affects Fc but not centripetal acceleration.

• The radius affects Fc but not centripetal acceleration.

• Both Fc and centripetal acceleration are directly proportional to the square of velocity.

What is the centripetal force in this situation?

• weight of car

• normal force on car

• friction between tires and road

• applied force of engine

You swing a bucket of water attached to a string in a circle above your head. What keeps the water in the bucket?

• Friction
• Centripetal Force
• Gravity
• Inertia

Tags

NGSS.HS-PS2-1

Where is the net force when the rollercoaster is at the top of the loop?

• Towards the sky
• Towards the Right
• Towards the left
• Towards the ground

Tags

NGSS.HS-PS2-1

Which represents the acceleration of the ball?

• A
• B
• C
• D

Tags

NGSS.HS-PS2-1

Which of the following represent the possible direction for speed of the moving ball in a circular motion?

• A

• B

• C

• D