Final Exam/Mock ACP Fall 2019

Describe the motion of the car in 4-6 seconds from the graph above.

• The car’s velocity is 1.6 m/s

• The car’s acceleration is 10 m/s²

• The car’s velocity is 10 m/s

• The car’s acceleration is 20 m/s²

Tags

NGSS.HS-PS2-1

The table on the left shows the mass, velocity and height of four different objects. Which object has the most mechanical energy?

• Object A

• Object B

• Object C

• Object D

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

An object moves along a straight line with an acceleration of 2 m/s². What is the velocity after 5 seconds if its initial velocity is 10 m/s?

• 10 m/s

• 20 m/s

• 25 m/s

• 35 m/s

Tags

NGSS.HS-PS2-1

A car with a mass of 1000 kg increases its velocity from 15 m/s to 21 m/s in 3 seconds. How much force is exerted on the car during this period of time?

• 2000 N

• 3000 N

• 4500 N

• 2 N

Tags

NGSS.HS-PS2-1

A block with a mass of 5.0 kg is pushed on a frictionless surface by applying a horizontal force of 80.0 N. The block starts from rest, and its final velocity is 12.6 m/s. How much work is done on the block?

• 32 J

• 397 J

• 800 J

• 992 J

Tags

NGSS.HS-PS2-1

Find the centripetal acceleration of a car that is moving at 120 m/s around a circle with a radius of 10 meters.

• 12 m/s²

• 15 000 m/s²

• 1 200 m/s^2

• 1 440 m/s²

A pendulum is released from point B. Which statement is correct?

• The PE at B is converted into KE as it swings to A.

• The PE at A is converted into KE as it swings to C.

• The PE is maximum at A.

• The KE is maximum at C and B.

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-3

Two objects, A and B, are acted upon by the same force. Object B accelerates faster than object A. What could be a possible reason for this?

• When the force was applied, object B is already moving while A is at rest.

• Object A is on a level surface but object B is pushed up an incline.

• Object A has greater mass than object B.

• Object A has less mass than object B.

Tags

NGSS.HS-PS2-1

Find the acceleration of an object with the free-body diagram shown here.

• 30 m/s²

• 15 m/s²

• 5.2 m/s²

• 3.4 m/s²

Tags

NGSS.HS-PS2-1

A man runs 1.5 m/s on a flat train car that travels 4 m/s in the opposite direction. What is the man’s velocity relative to a stationary observer?

• 5.5 m/s to the right

• 1.5 m/s to the right

• 2.5 m/s to the left

• 2.5 m/s to the right