Which two forms of energy does the earth receive directly from the sun?

• Mechanical and thermal
• Light and thermal
• Light and sound
• Electrical and heat

An object that contains a lot of thermal energy can be recognized because it ________________. 

• is moving quickly
• has a round shape
• is warm to the touch
• appears bright

Wind turbines change wind energy into________________. 

• Electrical energy
• light energy
• wave energy
• sound energy

A flashlight produces light energy by using which of the following type of energy from batteries?

• solar
• nuclea
• sound
• electrical

Many common devices use this form of energy.  All of the devices that use a plug and socket like this are using what kind of energy? 

• Heat
• Light
• Sound
• Electrical

This boy is using a bow and arrow.  What form of energy does a bow and arrow demonstrate? 

• mechanical
• sound
• thermal
• electrical

People might use a lamp to help them see, but in many cases, the bulb gets quite warm.  The two forms of energy being produced by the lamp are _____________________________. 

• sound and thermal
• electrical and light
• light and thermal
• sound and mechanical

On a hot, sunny day, what color shirt would absorb the most heat?

• Yellow
• Black
• White
• Green

__________________ energy is the energy of motion or stored energy. 

• Electrical
• Sound
• Thermal
• Mechanical

An object produces sound because it ____________________. 

• generates electrical energy
• causes air to vibrate
• reflects light from the sun
• absorbs heat from water