Science Energy

Deanna’s niece loves to swing at the local playground, so Deanna takes her and pushes her on the swing. Deanna must use

(a)  

Tags

NGSS.MS-PS3-5

Deanna’s niece loves to swing at the local playground, so Deanna takes her and pushes her on the swing. Deanna must use energy to exert

(a)  

Tags

NGSS.MS-PS3-5

Deanna’s niece loves to swing at the local playground, so Deanna takes her and pushes her on the swing. Deanna must use energy  force  to exert a force that causes the swing to change

(a)  

Tags

NGSS.MS-PS3-5

NGSS.MS-PS2-2

Four students are each pushing on one side of a box. Mara is pushing to the west, Cindi is pushing to the east, Chris is pushing to the north, and Sammy is pushing to the south. If the box moves to the east, which student does work on the box?

• Mara

• Cindi

• Chris

• Sammy

Tags

NGSS.MS-PS2-2

Marissa uses a cart to haul flowers at her job with a landscaper. She pushes a 12-kilogram cart a distance of 6 meters with a force of 25 Newtons. How much work does she do?

• 4.25 N/m

• 12.50N*m/kg

• 
  150.00 N•m

• 1800.00 N•m•kg

Tags

NGSS.MS-PS2-2

Chad’s family just moved into a new home. The sun went down as Chad was moving boxes into the house, so he had to turn on a light to see. Which statements are true about the power Chad used? Choose the two statements that apply.

• The power he used to move the boxes can be found by determining the rate at which work was done on the boxes.

• The power Chad used to move the boxes is the force he used times the distance he moved them.

• The power of the light Chad turned on is the amount of energy changed from electricity to light.

• The power of the light Chad turned on is the amount of energy transferred per time.

Raul dug a hole in his yard to repair a water pipe. It took him 2 seconds to apply a force of 50 Newtons to push the shovel 0.25 m into the ground. How much power was used?

• 0.01 watts

• 
  6.25 J/s

• 25.00 N•m•s

• 100.00 watts

Tags

NGSS.MS-PS2-2

Colin is helping the librarian return books to the shelves where they belong. He picks up books from the librarian’s desk, as shown in Figure A. He then carries them to the shelves, as shown in Figure B.

In which figure does Colin do work?

• Figure A

• Figure B

• Both Figures

• Neither Figures

As a baseball flies through the air after being hit, which one of the following types of energy does it have?

• potential energy

• kinetic energy

• nuclear energy

• chemical energy

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-1

What happens when electrical energy is changed to thermal energy?

• An energy change takes place.

• A force change takes place.

• An energy conversion takes place. 

• An electrical conversion takes place.

Tags

NGSS.MS-PS1-4