AP Physics 1 Semester 2 Exam Review

When a rigid object rotates about a fixed axis, what is true about all the points in the object? 

• They all have the same tangential acceleration.
• They all have the same angular speed.
• They all have the same tangential speed.
• They all have the same radial acceleration.

Two children, Ahmed and Jacques, ride on a merry-go-round. Ahmed is at a greater distance from the axis of rotation than Jacques. Which of the following are true statements? 

• Jacques and Ahmed have the same tangential speed.
• Ahmed has a greater tangential speed than Jacques.
• Jacques has a greater angular speed than Ahmed.
• Jacques has a smaller angular speed than Ahmed.

The figure shows scale drawings of four objects, each of the same mass and uniform thickness, with the mass distributed uniformly. Which one has the greatest moment of inertia when rotated about an axis perpendicular to the plane of the drawing at point P?

• A
• B
• C
• D

What is the angular speed, in rad/s, of a flywheel turning at 813.0 rpm?

• 13.53 rad/s
• 95.33 rad/s
• 85.14 rad/s
• 63.84 rad/s

A child is riding a merry-go-round that is turning at 7.18 rpm. If the child is standing 4.65 m from the center of the merry-go-round, how fast is the child moving?

• 1.75 m/s
• 3.50 m/s
• 5.64 m/s
• 1.80 m/s

What force keeps satellites and planets moving in a circular path.

• sound
• inertia
• mass
• gravity

Tags

NGSS.HS-ESS1-4

NGSS.HS-PS2-4

Which wrench will create more torque given the same amount of force?

• 5 inch long
• 6 inch long
• 7 inch long
• 8 inch long

What is gravitational force?

• It makes objects at rest start moving.
• It makes objects that are moving stop.
• The force of attraction between two objects.
• It pulls you into space.

Tags

NGSS.HS-PS2-4

A baseball and bat are on the ground.   What is true?

• They attract each other with equal gravitational force.
• There is no gravitational force between them.
• The baseball will float because it's lighter.
• The bat will pull the baseball closer to itself.

Tags

NGSS.HS-PS2-4

Which represents the acceleration of the ball?

• A
• B
• C
• D

Tags

NGSS.HS-PS2-1