AP Physics C Mechanics Review

For a system in simple harmonic motion, which of the following is the time required to complete a cycle of motion?

• amplitude

• period

• frequency

• revolution

The period of a pendulum may be decreased by

• Increasing the mass of the bob

• moving the equilibrium point

• decreasing the mass of the bob

• shortening the length of pendulum

The velocity of an object is given as v = 2t + 3t³. what is the acceleration of the object at t = 2 s?

• 38 m/s/s

• 27 m/s/s

• 16 m/s/s

• 49 m/s/s

Tags

NGSS.HS-PS2-1

Which of the following is NOT an example of unbalanced forces?

• a turning car

• a car breaking to a stop

• a car traveling 60 mph constantly

• a car accelerating down a hill

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NGSS.MS-PS2-2

Which of the following is an example of balanced forces?

• a box with a Net Force of 5N

• a box with a Net Force of -5N

• a box with a Net Force of 0N

• a box with a Net Force of 5N to the right

What is the difference between speed and velocity?

• speed is a change in velocity

• speed is velocity with a direction

• speed is no change in velocity

• velocity is speed with a direction

An _______ force must act on an object for it to CHANGE it's motion

• balanced

• unbalanced

• gravitational

• electrical

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NGSS.MS-PS2-2

Pushing a child on a swing is easier than pushing an adult on the same swing, because the adult has more mass and requires more force to accelerate.

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

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NGSS.MS-PS2-2

When you step on a Lego. You push on the Lego and the Lego pushes back on you.

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

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NGSS.MS-PS2-1

If you double the mass of an object with the same force apply on it, the acceleration will

• double

• cut in half

• the same

• zero

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NGSS.MS-PS2-2