Unit 10 Energy Test

Forms of energy include

• chemical energy
• mechanical energy
• thermal energy
• light energy
• all of the above

If the mass of an object stays the same but the velocity is doubled, the Kinetic Energy will

• stay the same
• double (x2)
• triple (x3)
• quadruple (x4)

The energy stored in a compressed spring is

• elastic potential energy
• joule
• potential energy
• kinetic energy

The _________ is the SI unit for energy

• Kilogram (kg)

• Joule (J)

• Kelvin (K)

• Meters (m)

The muscles of a runner transform chemical potential energy into __________________.

• elastic potential energy
• joule
• potential energy
• kinetic energy

When a book is moved from a higher shelf to a lower shelf, its _____________ changes.

• elastic potential energy
• joule
• potential energy
• kinetic energy

What occurs when energy is transferred from one object to another ?

• an explosion
• a chemical reaction
• nuclear fusion
• a change

The gravitational potential energy of an object changes when which of the following changes ?

• the object's speed
• the object's mass
• the object's temperature
• the object's length

Friction causes mechanical energy to be transformed into which of these forms ?

• thermal
• nuclear
• kinetic
• potential

True or False - Energy from the Sun that warms you and the energy from the food that you eat are only different forms of the same thing.

• True
• False