Energy - class 7

The unit for energy is

• joules J

• newtons N

• kilograms kg

• meters per second m/s

• Ns

Where does the skater have the MOST Gravitational Potential Energy?

• B

• D

• F

• G

• All of the above

Where does the skater have the MOST Kinetic Energy?

• B

• D

• F

• G

• All of the above

Vihaan used pencils to hit the table and make a drum beat. Which form of energy do the pencils hitting the table produce?

• Heat Energy

• Light Energy

• Sound Energy

• Electrical Energy

Energy can be used to change the properties of a substance. Which of the following is an example of electrical energy causing change to an object?

• The sun causing a sunburn

• A pie baking in the oven

• Roasting marshmallows over a campfire

• Glasses fogging up

What type of energy is in this picture?

• Kinetic
• Potential
• Chemical
• Sound

When plants convert the sun's energy into food, which type of energy is it?

• kinetic
• chemical
• thermal
• radiant

Wind turbines and windmills convert what energy to another?

• Kinetic to electric
• Gravitational potential to electric
• Mechanical to potential
• Thermal to sound

On a roller coaster, where is maximum potential energy?

• At the bottom of a big hill
• When going around a corner
• When going upside down
• At the top of a big hill

Energy that is stored in bonds between atoms is:

• Mechanical energy
• Chemical energy
• Kinetic energy
• Nuclear energy