Energy Vocabulary Fast & Curious

What is the non-SI unit for energy?

• Joule

• Calorie

• Cal

• Watt

What does the law of conservation of energy state?

• Energy can be created and destroyed.

• Energy is transferred or transformed from one system to another.

• Energy is only transferred in chemical processes.

• Energy is only transformed in physical processes.

What happens in an endothermic reaction?

• Heat is absorbed from the surroundings.

• Heat is released into the surroundings.

• The temperature of the surroundings increases.

• The temperature of the surroundings decreases.

What is activation energy?

• The maximum energy particles must have to react.

• The minimum energy colliding particles must have to react.

• The average energy particles must have to react.

• The energy required to start a reaction.

What is an open system?

• Energy and matter are exchanged freely with the surroundings.

• Only energy is exchanged with the surroundings.

• Only matter is exchanged with the surroundings.

• Neither energy nor matter is exchanged with the surroundings.

What is an isolated system?

• Energy is exchanged with the surroundings, but matter is not.

• Matter is exchanged with the surroundings, but energy is not.

• Both energy and matter are exchanged with the surroundings.

• Neither energy nor matter is exchanged with the surroundings.

What is specific heat?

• The energy required to change the state of a substance

• The amount of energy needed to raise the temperature of 1kg of a substance by 1 degree Kelvin (or Celsius)

• The energy released during a chemical reaction

• The energy stored in the nucleus of an atom

Which of the following best describes chemical potential energy?

• Energy due to an object's position

• Energy stored in chemical bonds

• Energy from the sun

• Energy from moving water

What is often a product of a combustion reaction?

• Carbon dioxide

• Nitrogen gas

• Helium

• Sodium chloride

How does specific heat affect temperature change?

• Higher specific heat means less temperature change for the same energy input

• Higher specific heat means more temperature change for the same energy input

• Specific heat has no effect on temperature change

• Specific heat only affects gases