Unit 1 Energy Test

Suppose the skater is at the highest point in the jump. What are the relative amounts of the skater’s kinetic and gravitational potential energy at that point?

• A. all kinetic energy, no gravitational potential energy
• B. half kinetic energy, half gravitational potential energy
• C. no kinetic energy, all gravitational potential energy
• D. no kinetic energy, no gravitational potential energy

What is the reason that solar energy is not a primary source of energy for generating electricity?

• A) The necessary technology has not yet been developed.
• B) It generates toxic waste products.
• C) It is a nonrenewable resource.
• D) It is too expensive.

Which of the following is an example of electrical energy?

• A) burning wax producing a flame
• B) lightning
• C) your body utilizing food to maintain your internal temperature
• D) the Sun warming a windowsill

What two factors determine how much potential energy an object has?

• A) speed and position
• B) mass and position
• C) speed and surface area
• D) speed and mass

__________ is the energy stored in an object due to its position.

• A) Potential energy
• B) Kinetic energy
• C) Entropy
• D) Thermal energy

As energy transformations occur within a system, the total energy of the system __________.

• A) increases
• B) remains constant
• C) decreases
• D) is transferred out of the system

All power plants use fuel to supply energy that turns __________.

• A) windmills
• B) treadmills
• C) drive shafts
• D) generators

__________ energy is the type of energy light has.

• A) Potential
• B) Electrical
• C) Radiant
• D) Thermal

An energy source that will eventually run out is called a(n) __________ resource.

• A) conserved
• B) renewable
• C) non-renewable
• D) endangered

Which of the following objects has potential energy?

• A) a bowling ball knocking over a pin
• B) a ball rolling across the floor
• C) a bicycle coasting down a hill
• D) a glass sitting on a table