Electricity & Enzymes Quiz

Which of the following is an example of kinetic energy?

• A compressed spring
• A rolling ball
• A battery
• A stretched rubber band

What does the Law of Conservation of Energy state?

• Energy can be created
• Energy can be destroyed
• Energy is always conserved
• Energy can change forms but not be created or destroyed

What is the formula for calculating kinetic energy?

• KE = mv²
• KE = 1/2 mv²
• KE = mg
• KE = mv

What is gravitational potential energy dependent on?

• Mass and speed
• Mass and height
• Mass and velocity
• Speed and height

What type of energy transformation occurs in a flashlight?

• Chemical to light
• Electrical to chemical
• Light to chemical
• Chemical to sound

How does heat energy transfer from one object to another?

• From cold to hot
• From hot to cold
• From cold to cold
• From hot to hot

What is conduction in terms of heat transfer?

• Heat transfer through fluids
• Heat transfer through electromagnetic waves
• Heat transfer through direct contact
• Heat transfer through empty space

Which colour absorbs the most heat?

• White
• Light blue
• Red
• Black

What is an example of reducing heat transfer by conduction?

• Using curtains
• Wearing light-colored clothes
• Using a metal spoon in hot soup
• Adding insulation to walls

What happens when gravitational potential energy is converted to kinetic energy?

• The object gains height
• The object gains speed
• The object's mass increases
• The object comes to rest