8th Grade Term 2 Test Review

A student creates a ramp by stacking four blocks and then leaning a meter stick against it. She releases four different balls from the same position on the ramp and calculates their speeds. Based on the information in the table above, which ball would you predict to have the least kinetic energy when it reaches the end of the ramp?

• Baseball

• Golf ball

• Softball

• Tennis ball

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

A graph showing the kinetic energy of a 10 kg object at different speeds is provided.

Based on the information in the graph, we can predict that the kinetic energy of the object at 2 m/s would be--

• 12 Joules

• 20 Joules

• 38 Joules

• 44 Joules

Tags

NGSS.MS-PS3-1

Students conduct an experiment using a toy car with the mass of 10g, a toy car with the mass of 20g, and a toy car with the mass of 30g. The students want to test the cars on a ramp and measure how far the cars traveled. Evaluate the information and determine the question they are trying to test with this experiment.

 

• Does the height of the ramp influence he amount of potentia energy?

• Does the mass of the car influence the amount of kinetic energy?

• Does the amount of incline determine how far the car will drive?

• Does the mass of the object influence the amount of potential energy?

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

A graph showing the kinetic energy and mass of objects traveling at 10 m/s is shown. In order for an object moving at 10 m/s to have a kinetic energy of 1800 Joules, the object musst have a mass in the range of--

• 0-10 kg

• 10-20 kg

• 20-30 kg

• 30-40 kg

Tags

NGSS.MS-PS3-1

A graph showing the kinetic energy and speed of a moving object is provided. Which of the following can be concluded from the graph?

• Kinetic energy only changes when speed changes.

• Speed is only related to the size of an object.

• Kinetic energy increases as speed increases.

• All moving objects have the same kinetic energy.

Tags

NGSS.MS-PS3-1

The image below shows four soccer balls at different locations on an uneven soccer field. Which ball has the greatest amount of kinetic energy?

• Ball A

• Ball B

• Ball C

• Ball D

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

The image here shows four soccer balls at four different locations on an uneven field very near sea level. Which soccer ball has the greatest amount of potential energy?

• Ball A

• Ball B

• Ball C

• Ball D

Tags

NGSS.MS-PS2-4

NGSS.MS-PS3-2

Two balloons are given an electrostatic charge by rubbing them with a wool cloth. Which observation provides evidence of the force that the balloons exert on each other over a distance because of their charge?

• The amount of rubbing with the wool cloth can change the amount of charge.
  

• Both Balloon 1 and Balloon 2 are pulled downward by the force of gravity.

• Moving Balloon 1 can make Balloon 2 move without the balloons touching.

• The charge on the balloons gets weaker over time until there is no charge.
  

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

An illustration of a roller coaster is provided. At which point in the roller coaster's journey along the track does it have the greatest potential energy?

• W

• X

• Y

• Z

Tags

NGSS.MS-PS3-2

At which position on the diagram would an apple have the greatest potential energy?

• Position 1

• Position 2

• Position 3

• Position 4

Tags

NGSS.MS-PS3-2