4/1/24 DOL

A demonstration helps students understand a principle of roller coaster design. Which answer choice correctly describes the ball's kinetic and potential energy?

• The ball has more potential energy at position X than at position Z.

• The ball has more kinetic energy at position Y than at position W.

• The potential energy and kinetic energy of the ball are equal at position X.

• The potential energy and kinetic energy of the ball are greatest at position Z.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Four students were asked to classify the activities of the people in the picture below as examples of either potential or kinetic energy. Which student correctly classified the activities?

• Student 1: Girl swimming laps (Potential energy), Boy on diving board (Kinetic energy), Girl hitting volleyball (Potential energy), Boy holding volleyball (Kinetic energy)

• Student 2: Girl swimming laps (Potential energy), Boy on diving board (Potential energy), Girl hitting volleyball (Kinetic energy), Boy holding volleyball (Kinetic energy)

• Student 3: Girl swimming laps (Kinetic energy), Boy on diving board (Kinetic energy), Girl hitting volleyball (Potential energy), Boy holding volleyball (Potential energy)

• Student 4: Girl swimming laps (Kinetic energy), Boy on diving board (Potential energy), Girl hitting volleyball (Kinetic energy), Boy holding volleyball (Potential energy)

Tags

NGSS.MS-PS3-1

A teacher rubbed a match against a piece of sandpaper. The match started to burn. Which statement best describes the energy changes that occurred?

• A. The chemical energy stored in the match changed to thermal energy and light energy.

• B. The thermal energy stored in the match changed to light energy and chemical energy.

• C. The light energy and thermal energy stored in the match changed to mechanical energy.

• D. The light energy and thermal energy stored in the match changed to chemical energy.

Tags

NGSS.MS-PS3-5

The diagram shows how a cylinder in a car engine causes the car to move. Which statement is correct?

• The chemical energy in the fuel-air mixture is converted to thermal energy, which is then converted to mechanical energy.

• The mechanical energy in the fuel-air mixture is converted to electrical energy, which is then converted to thermal energy.

• The electrical energy in the fuel-air mixture is converted to electrical energy, which is then converted to mechanical energy.

• The electrical energy in the fuel-air mixture is converted to thermal energy, which is then converted to mechanical energy.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-3

NGSS.MS-PS3-5

 A snowboarder practices sliding down a hill. The diagram shows three positions of the 

    snowboarder. Compare the amounts of potential energy and kinetic energy of the snowboarder at Position 1.

 There is ______ potential energy than kinetic energy for the snowboarder at Position 1.

​ (a)  

• More
• Less
• Equal

Tags

NGSS.MS-PS3-2

Compare the amounts of potential energy and kinetic energy of the snowboarder at  

      Position 2

The potential energy is ​ to the kinetic energy for the snowboarder at Position 2.

​ (a)  

• Equal
• Less
• More

Tags

NGSS.MS-PS3-2

 A snowboarder practices sliding down a hill. The diagram shows three positions of the 

    snowboarder.

Compare the amounts of potential energy and kinetic energy of the snowboarder at Position 3.

There is __________ potential energy than kinetic energy for the snowboarder at Position 3.   

​ (a)  

• less
• Less
• More
• Equal

Tags

NGSS.MS-PS3-2