Force, Motion, and Energy

A group of students was conducting an investigation with plants. One group of plants was placed inside a closet. The other group of plants was placed next to a window. After two weeks, the plants next to the window were taller and healthier than the plants in the closet. Which statement best explains the difference in plant growth?

• The plants next to the window were able to convert more light energy into chemical energy.

• The plants next to the window were able to convert more thermal energy into light energy.

• The plants next to the window were able to convert more thermal energy into mechanical energy.

• The plants next to the window were able to convert more light energy into electrical energy.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS1-6

NGSS.MS-LS2-1

Why is it harder for Luis to slide down a grassy hill compared to a snowy hill?

• Because of Motion

• Because of Friction

• Because of Work

• Because of Displacement

Hannah and Aria are having a tug-of-war. If they are pulling with the same amount of force, what will happen?

• Hannah will win.

• They will not move at all.

• Aria will win.

• Both will fall down.

Tags

NGSS.MS-PS2-1

Your lab partner tosses you a ball. As she throws the ball up in the air it follows this arc. Where is potential energy the greatest?

• Point A

• Point B

• Point C

• Point D

Tags

NGSS.MS-PS3-2

In the figure, potential energy is being converted into kinetic energy from

• point A to point B

• point B to point C

• The only energy involved here is kinetic.

• Energy is not being converted.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

You and your dad are moving the couch from one side to another. Your dad pushes with a force of 35 N to the right and you push with a force of 25 N right. What is the net force on the couch?

• 60 N right
• 10 N left
• 60 n right
• 50 N left

Tags

NGSS.MS-PS2-2

Which of the following is an example of an unbalanced force?

• 
• 
• 
• 

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Pedro and Enrique are pushing a box. Pedro pushes with a force of 50 N to the right, and Enrique pushes with a force of 30 N to the left. How will the box move? 

• It won't move. 

  0 Newtons

• It will move to the right with 20 N of force. 

• It will move to the left with 20 N of force. 

• It will move up

  with 80 N of force. 

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Anna, Benito, Valeria and Angel are pushing shopping carts at the grocery store. A force of 90N is applied to each cart. Which cart will accelerate the fastest?

• Cart 1

• Cart 2

• Cart 3 

• Cart 4

Tags

NGSS.MS-PS2-2

Objects with greater _________ also have greater inertia.

• speed
• mass
• temperature
• friction

Tags

NGSS.MS-PS2-2