Energy Quiz

What is chemical energy?

• Energy that is only observed in chemical laboratories

• Energy which comes from a chemical reaction

• Energy that is used to power vehicles

• Energy that is stored in physical objects

What are examples of chemical reactions?

• Freezing, melting, and evaporation

• Digesting, burning, and the mixing of chemicals

• Cutting, painting, and drawing

• Walking, running, and jumping

What is mechanical energy?

• Energy that is created by machines only

• Energy that is observed by the amount of energy an object has when it is in motion

• Energy that is stored in batteries

• Energy that is produced by electrical devices

What are the two parts of mechanical energy?

• Kinetic and potential energy

• Thermal and electrical energy

• Solar and lunar energy

• Static and dynamic energy

How does an object's mass impact its mechanical energy?

• The less mass an object has, the more mechanical energy it possesses

• The mass of an object does not impact its mechanical energy

• The more mass an object has, the more mechanical energy it possesses

• The mass of an object only affects its color, not its mechanical energy

How does an object's speed impact its mechanical energy?

• The more speed the object has, the less mechanical energy it possesses

• The speed of an object only affects its direction, not its mechanical energy

• The more speed the object has, the more mechanical energy it possesses

• The speed of an object impacts its weight, not its mechanical energy

How is water used to create electricity?

• Water is heated to create steam which then powers a generator

• Water is frozen and the energy from the phase change is harnessed

• Water is released through a dam where the force of gravity causes it to fall through a turbine

• Water is purified and the clean water generates electricity

How is wind used to create energy?

• Wind is cooled down to create energy

• Wind is used to push objects which in turn generate energy

• Wind is harnessed by the blades of a wind turbine

• Wind is collected in large bags and the air pressure is used to generate energy

Fireworks release _____.

• light, thermal and sound energies

• mechanical energy

• wind energy

• water energy

Mechanical energy can be stored in an electrical generator for later use.

• True

• false