Energy and energy resources

Energy is stored and transferred in which of the following ways?

• Energy is stored in objects and transferred by heating, waves, or electrical currents.

• Energy is only stored in living things and transferred by sound.

• Energy is stored in liquids and transferred by gravity only.

• Energy is stored in gases and transferred by magnetism only.

The energy needed to heat an object can be calculated using which of the following formulas?

• Energy = mass × specific heat capacity × temperature change

• Energy = force × distance

• Energy = mass × acceleration

• Energy = power × time

Thermal conductivity is defined as:

• the property of a material to conduct heat

• the ability of a material to conduct electricity

• the measure of a material's density

• the property of a material to resist heat flow

Comparing different renewable energy resources can be done by evaluating which of the following factors?

• Efficiency, cost, and environmental impact

• Color and shape

• Popularity on social media

• Amount of fossil fuels used

Fill in the blank: Energy is a quantity that can be ______ and calculated.

• measured

• ignored

• destroyed

• forgotten

Fill in the blank: The total energy before and after a change has the same ______.

• value

• direction

• color

• location

Fill in the blank: Energy transfers can be compared in terms of ______.

• usefulness

• temperature

• speed

• color

Fill in the blank: Energy transfer by heating can be reduced by using ______ materials.

• insulating

• conducting

• magnetic

• transparent

Fill in the blank: Energy is transferred by ______.

• radiation

• condensation

• evaporation

• filtration

Fill in the blank: The energy needed to heat an object depends on its mass and the ______ it is made of.

• material

• color

• shape

• temperature