Light and Heat energy

Sally left a cup full of ice outside on the basketball court. The day was very sunny. When she came back an hour later she noticed her ice was now in liquid form. What most likely happened to Sally’s ice?

• The ice was melted by the street lamp.

• The ice was melted by heat and light energy from the sun.

• The ice was melted by light energy from the sun.

• The ice frozen by heat and light from the sun.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Duke was changing a red christmas light bulb on the christmas tree. When he touched the bulb he immediately yelled, "OW!" It had burnt his finger! He knew that light bulbs give off light energy but what scientific principle did he forget until he touched it?

• Objects that give off light energy also give off heat energy.

• Objects that give off light often also give off sound energy.

• Objects can only give off one form of energy at a time.

• The texture of objects change when they give off light energy.

Which best explains what is happening with the straw?

• The water is dissolving the plastic and is breaking the straw.

• Light bends as it hits the water and makes the straw appear broken or bent.

• The water is pressing on the straw with such force that it is bending.

• The water is pulling on the straw and causing it to bend.

Tags

NGSS.MS-PS4-2

Why does a tree cause a shadow to form, while a window does not?

• A tree reflects light, while glass absorbs light.

• A tree absorbs light, while glass reflects light.

• A tree blocks light, while glass allows light to pass through.

• A tree allows light to pass through, while glass blocks light.

Which scientific principle does this experiment demonstrate?

• Light produces shadows.

• Light bends when it travels through water.

• Light travels in straight lines.

• Light is absorbed by solid objects.

Mike, Connie, and Stan were playing around with light. Look at the picture and explain what they noticed about the behavior of light.

• When light hits a shiny object it will reflect.

• When light hits a shiny object it will be absorbed.

• When light hits a shiny object nothing happens.

• When light hits a shiny object it transforms into sound energy.

Tags

NGSS.MS-PS4-2