Developing and Using Models to Illustrate Energy at the Macroscopic Scale

What factors determine an object’s kinetic energy?

• its height and its mass

• its mass and its speed

• its size and its weight

• its speed and its height

Tags

NGSS.MS-PS3-1

Which of these is an example of kinetic energy?

• wind blowing

• water in a glass

• a can of vegetables

• the walls of a building

Tags

NGSS.MS-PS3-1

When would you have the most potential energy?

• walking up the hill

• running up the hill

• sitting at the top of the hill

• sitting at the bottom of the hill

Tags

NGSS.MS-PS3-2

Which of the following is an example of the transformation of potential energy into kinetic energy?

• A car stopping at a stop sign.

• A balloon stays still in the air.

• An orange falling from a tree.

• A roller coaster going up a hill.

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-4

Which statement about energy transformations is not true?

• All forms of energy can be transformed into thermal energy.

• Energy is never destroyed or created during transformations.

• Potential chemical energy always transforms into kinetic energy.

• Some thermal energy is always released during a transformation

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-5

At which point does the pendulum weight have the greatest amount of kinetic energy?

• A

• B

• C

• D

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

A coffee mug falls off of the kitchen countertop. At what point is the potential energy the

greatest?

• At the start of the fall (the top)

• Halfway between the start and the end

• At the end of the fall (the bottom)

• At all points during the fall

Tags

NGSS.MS-PS3-2

Jordan wants to know how much kinetic energy a 9 lb. bowling ball has when it is dropped.

What additional information would Jordan most likely need to determine the kinetic energy of the bowling ball?

• The speed at which it fell

• The height from which it was dropped

• The number of times the bowling ball was dropped before

• The force of gravity that is pulling down on the bowling ball and its mass

Tags

NGSS.MS-PS3-1

The table gives information about two balls dropped from different windows. Which statement correctly compares the balls when they reach the ground?

• Ball A has greater potential energy

• Ball B has greater kinetic energy.

• Both balls have the same amount of potential energy.

• Both balls have the same amount of kinetic energy

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-5

What is energy?

• The ability to cause change or do work

• The ability to create light

• Gravitational forces

• A hypothesis that is proven in an experiment

Tags

NGSS.MS-PS3-5