2nd 4 weeks test review

CLICK ON THE PICTURE TO SEE THE QUESTION.

• A

• B

• C

• D

Tags

NGSS.MS-PS3-2

Which statements accurately describe the potential and kinetic energy of this bicyclist?

• Kinetic energy increases. Potential energy decreases.

• Kinetic energy increases. Potential energy remains constant.

• Kinetic energy remains constant. Potential energy decreases.

• Kinetic energy remains constant. Potential energy increases.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-5

Which statement best describes the energy of the roller coaster as it slows down while traveling to the top of the coaster?

• The cart gains both kinetic and potential energy.

• The cart gains kinetic energy and loses potential energy.

• The cart loses kinetic energy and gains potential energy.

• The cart loses both kinetic and potential energy.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-5

Which object travels at the greater average speed?

• Object 1, because it travels the longer amount of time

• Object 2, because it travels the shorter amount of time

• Object 1, because it travels the greater distance per unit of time

• Object 2, because it travels the shorter distance per unit of time

Tags

NGSS.MS-PS3-1

Two students record the distance they traveled in 60 seconds in the data table shown to the left.

If the students continue at the same speed, which statement describes the total distance traveled after 90 seconds?

• Student 1 traveled 40 m, and student 2 traveled 20 m.

• Student 1 traveled 50 m, and student 2 traveled 30 m.

• Student 1 traveled 60 m, and student 2 traveled 30 m.

• Student 1 traveled 70 m, and student 2 traveled 25 m.

What is the horse's average speed in kilometers per minute?

How does friction affect speed?

• more friction decreases speed
• more friction increases speed
• less friction decreases speed

Friction is a force that acts in an ___________ direction of movement.

• similar
• opposite
• parallel
• west

(T or F?) A balanced force is only an object that is not moving. 

• True 
• False

Which could be an example of a balanced force?

• An asteroid moving at a constant speed through space 
• A car accelerating from a stop sign
• A box of dishes falling from a counter 
• A rocket taking off