Science Quiz

What does the Law of Conservation of Matter state?

• Matter can be created or destroyed

• Matter cannot be created or destroyed

• Energy can be created or destroyed

• Energy cannot be created or destroyed

What is energy measured in?

• Joules

• Calories

• Watts

• Volts

Which type of energy is derived from the motion and mass of an object?

• Chemical

• Kinetic

• Potential

• Mechanical

What happens when ozone changes back to oxygen?

• Light is emitted

• Heat is absorbed

• Heat is given off

• Energy is stored

According to the law of entropy, what happens to energy?

• Energy becomes more ordered

• Energy becomes less dispersed

• Energy becomes more dispersed

• Energy can be recycled

What is the main characteristic of low-quality energy?

• It is easy to use and disperses quickly.

• It is concentrated and easy to gather.

• It is dispersed at low temperatures and difficult to gather.

• It is used in resistance heating.

What is the most efficient way to use high-quality electrical energy according to the text?

• In a car engine.

• In super-insulated houses and passive solar heat.

• In a wood campfire.

• In ocean heating.

How is energy transferred through conduction?

• By the movement of molecules in a substance.

• By the transfer of heat through a substance without the movement of molecules.

• By electromagnetic radiation.

• By the mixing of fluids or gases.

What is the speed of light as mentioned in the text?

• 300,000 km/sec

• 150,000 km/sec

• 500,000 km/sec

• 100,000 km/sec

According to the Stefan-Boltzmann Law, what do hotter bodies do?

• Emit less energy than cooler ones.

• Emit more energy than cooler ones.

• Emit energy at longer wavelengths.

• Emit energy at a constant rate.