Heat and Energy Quiz

How does heat transfer between objects?

• Through direct contact only

• Through radiation only

• Through convection only

• Through conduction, convection, and radiation

Answer explanation

Heat transfers between objects through conduction, convection, and radiation, not just through direct contact or a single method.

What happens to ice when heat is removed?

• It melts

• It evaporates

• It condenses

• It freezes

Answer explanation

When heat is removed from ice, it freezes back into a solid state.

How do particles in a solid behave?

• Move freely and fill the container

• Move close together with limited movement

• Move rapidly and are far apart

• Do not move at all

Answer explanation

Particles in a solid move close together with limited movement, maintaining a fixed position relative to each other.

How do particles in a liquid behave?

• Move freely and fill the container

• Move close together with limited movement

• Move rapidly and are far apart

• Slide past each other but are more free than in solids

Answer explanation

Particles in a liquid slide past each other but are more free than in solids, allowing for more movement and flexibility.

How do particles in a gas behave?

• Move freely and fill the container

• Move close together with limited movement

• Move rapidly and are far apart

• Slide past each other but are more free than in liquids

Answer explanation

Particles in a gas move rapidly and are far apart, allowing them to fill the container and exhibit high kinetic energy.

How is energy converted when you talk on your phone for a period of time?

• Mechanical to electrical

• Electrical to sound

• Sound to electrical

• Chemical to electrical

Answer explanation

When you talk on your phone, electrical energy from the battery is converted into sound waves, allowing you to communicate with the person on the other end of the call.

How is energy transferred when an object experiences friction?

• From kinetic to potential

• From potential to kinetic

• From mechanical to thermal

• From thermal to mechanical

Answer explanation

Friction causes energy to be transferred from mechanical energy to thermal energy.

What happens to the energy when a ball is bounced?

• It is completely lost

• It is converted to sound and heat

• It is stored as potential energy

• It increases

Answer explanation

When a ball is bounced, the energy is converted to sound and heat. It is not completely lost or stored as potential energy, but rather transformed into other forms.

What does the Law of Conservation of Energy state?

• Energy can be created and destroyed

• Energy can be transferred from one form to another but cannot be created or destroyed

• Energy disappears when used

• Energy is only found in mechanical forms

Answer explanation

Energy can be transferred from one form to another but cannot be created or destroyed

Which of the following is an example of potential energy?

• A car moving at 60 mph

• Water flowing in a river

• A book resting on a table

• Light from a lamp

Answer explanation

The correct example of potential energy is a book resting on a table, as it has stored energy due to its position.