AP Physics C Mechanics Review

The amount of work done in a certain amount of time is known as 

• work

• effort force

• resistance force 

• power

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Person A is twice the weight of Person B and climb the same hill. If person A gets the top in half the time then...

• Person A is twice as powerful

• Person B is twice as powerful

• Person A is four times as powerful

• Person B is four times as powerful 

Momentum is conserved in this type of collision

• elastic

• inelastic

• momentum is conserved in both types of collisions

Tags

NGSS.HS-PS2-2

An egg is thrown at a wall and at a bed sheet. The force of impact will be

• Greater against the wall

• Greater against the sheet

• Force is equal

Tags

NGSS.MS-PS2-1

Centripetal acceleration always points

• in the direction of the object's motion

• in the opposite direction of the object's motion

• towards the center of the circle

• towards the outside of the circle

At the top of a roller-coaster loop, gravity and the normal force point in opposite directions.

• True

• False

Tags

NGSS.HS-PS2-1

Which has greater angular speed, a horse near the outside rail of a merry-go-round or a horse near the inside rail?

• The inside horse

• The outside horse

• Neither - they both have the same angular speed

Two bugs ride a turntable which is rotating at a constant rate of 4 rad/s. Bug A is at a radius of 4 cm, while bug B is at a radius of 8 cm. Which of the following is true? 

• Bug A has a greater rotational speed. 

• Bug B has a greater rotational speed. 

• Bug A has a greater speed. 

• Bug B has a greater speed. 

Tags

NGSS.MS-PS3-1

Torque is the product of a force exerted on an object times the lever arm.

• True

• False

What is the equation for frequency?

• f = t/n

• f = 1/T

• f = 2 T

Tags

NGSS.HS-PS4-1