# Physical Science - Chapter 9 Question Preview (ID: 2274)

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When a bat hits a baseball, what is transferred from the bat to the ball?
a) Energy
b) Velocity
c) Chemical energy
d) Electrical energy

As a baseball flies through the air after being hit, which type of energy does it have?
a) Kinetic energy
b) Potential energy
c) Mechanical energy
d) Chemical energy

What is a force that opposes motion between two surfaces that are touching?
a) Friction
b) Nuclear fission
c) Kinetic energy
d) Electrical energy

What happens when electrical energy is changed to thermal energy?
a) An energy conversion takes place
b) An energy change takes place.
c) A force change takes place
d) An electrical conversion takes place

Which of the following is an example of a conversion from light energy to chemical energy?
a) An apple growing on an apple tree
b) Turning on a stove to heat dinner
c) Turning on a lamp
d) Making toast in a toaster

When is the potential energy the greatest in a roller coaster?
a) At the top of the first hill
b) At the bottom of the first hill
c) At the top of the second hill
d) At the bottom of the second hill

Energy conversions for a falling object give you the same final mechanical energy and initial energy. Which law explains this?
a) Law of conservation of energy
b) Law of energy changes
c) Law of power and energy
d) Law of potential energy

Any time an energy conversion takes place, some of the original energy is converted to which one of the following?
a) Thermal energy
b) Light energy
c) Potential energy
d) Sound energy

Which one of the following best describes fossil fuels?
a) Nonrenewable resources
b) Renewable resources
c) Kinetic resources
d) Fossil resources

At which point(s) does a pendulum swinging 360 degrees have the most potential energy?
a) Bottom
b) Top
c) Left
d) Right

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