Activity 5 Recap

The Law of Conservation of Energy states:

• Energy can created or destroyed but not transformed 
• Energy cannot be created or destroyed, it can only transformed
• Energy can't be created, destroyed or transformed

According to the Law of Conservation of energy, the amount of energy before and after a reaction must be the same. Which statement below is true?

• The total amount of energy is conserved
• The total amount of energy is less after a reaction
• The total amount of energy is more after a reaction

The sun provides ____________ and ____________ energy that can be harnessed and used for solar power.

• chemical, sound

• sound, light

• mechanical, light

• light, thermal

Energy can't be _____.

• transformed

• converted

• made or created

• harnessed or produced

This energy that is stored for later use.

• kinetic energy

• mechanical energy

• potential energy

• electromagnetic energy

This is energy of vibrating molecules that moves through matter

• sound

• mechanical

• thermal

• electrical

What type of energy do we use to cook food?

• mechanical

• thermal

• light

• sound

What type of energy do we get from the food we eat?

• light

• chemical

• thermal

• sound

When a football player kicks a ball, he transfers energy to the ball. What happens as a result?

• the ball gains kinetic energy

• the ball loses thermal energy

• the ball loses sound energy

• the ball gains light energy

In every energy transformation, some energy is always “lost” as ____ energy.

• Chemical

• Radiant

• Electrical

• Thermal