AP prep quiz energy

A spring with a spring constant of 3 N/m is compressed by 4 cm. How much potential energy is stored in the spring?

• 0.0024 J
• 0.024 J
• 2.4 J
• 24 J

Tags

NGSS.HS-PS3-2

That same roller coaster car moves down the hill. Assuming that the track is frictionless, which option represents the transfer of energy?

• Potential to Kinetic
• Kinetic to Potential
• Mechanical to Thermal
• Mechanical to Potential

Tags

NGSS.HS-PS3-3

A ball is thrown upwards and caught when it comes back down. In the absence of air resistance, the speed of the ball when caught would be 

• less than the speed it had when thrown upwards.
• more than the speed it had when thrown upwards.
• the same as the speed it had when thrown upwards.

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

If you throw a baseball straight up, what is its velocity at the highest point?

• 9.8 m/s²
• 9.8 m/s
• 0 m/s²
• 0 m/s

Tags

NGSS.HS-PS2-1

If you throw a baseball straight up, what is its acceleration at the highest point?

• 9.8 m/s²
• 9.8 m/s
• 0 m/s²
• 0 m/s

Tags

NGSS.HS-PS2-1

What type of waves travel in a perpendicular direction?

• Longitudinal Waves
• Mechanical Waves
• Transverse Waves
• Compression Waves

What approach is used to solve a problem on how much work an archer does pulling a bowstring back uniformly, if you know the mass, distance, and forces?

• Kinematics
• Momentum
• Work-Energy Theorem (WNC=(KE) + (PE))
• Work (W=Fx)

What is the difference in work(done on you) if you walked up a mountain or a car drove you up the same mountain?

• Same, Your weight doesn't change and the distance traveled says the same, therefore the work is the same.
• Car does more,The added weight of the car means more work is excerted upon you
• Walking does more, It takes longer, therefore more work is done
• Neither cause work, because their is no force there is no work.

Where is centripetal acceleration pointing if a car is driving in a circle with a constant speed? Why?

• Tangent to the circle, the car must be accelerating in the direction it's pointed
• There is none, since speed is not changing there is no acceleration
• Towards the center, the velocity vector is constantly changing direction, this leads the acceleration to be towards the center.
• Outward from the circle's center, something must counteract friction

In a Distance vs Time graph what is the slope? In a Velocity vs Time? Choose the most correct answer.

• Position/Time, Velocity/Time
• Acceleration, Velocity
• Distance Traveled, Change in Velocity
• Velocity, Acceleration