Chemical Energy- 5 types

What is chemical energy?

• Energy from the movement of tiny particles.

• Energy stored in objects that can be stretched or compressed.

• Energy of chemical substances like atoms and molecules.

• Energy transferred through waves without direct contact.

What happens to stored elastic energy when it is released?

• It is converted into chemical energy.

• It is released as motion.

• It is absorbed by the object.

• It transforms into heat and light.

What is the formula for elastic potential energy?

• PE = mgh

• PE = 1/2mv^2

• PE = 1/2kx^2

• PE = Fd

Which method of heat transfer involves direct contact between objects?

• Convection

• Conduction

• Radiation

• Absorption

Which of the following is NOT a source of heat energy?

• Friction

• Combustion

• Sound waves

• Chemical reactions

What are the negatively charged particles whose movement creates electrical energy?

• Protons

• Neutrons

• Electrons

• Photons

Approximately how fast does light travel per second?

• 186 miles

• 1,860 miles

• 18,600 miles

• 186,000 miles