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As a race car travels down a hill, which type of change in energy allows it to speed up?
plastic, because friction will be low
by decreasing the effort necessary to raise an object
That the car is traveling at a speed of 65 mph, then it slows down to 40 mph
potential energy changing into kinetic energy.
because there are fewer air molecules as altitude increases
calm weather as air sinks
It has mechanical energy in the form of kinetic energy.
by causing warm air to rise and cold air to sink
If a ball is roling off a top shelf that is 4 meters off the ground, how could you describe its energy?
plastic, because friction will be low
by decreasing the effort necessary to raise an object
That the car is traveling at a speed of 65 mph, then it slows down to 40 mph
potential energy changing into kinetic energy.
because there are fewer air molecules as altitude increases
calm weather as air sinks
It has mechanical energy in the form of kinetic energy.
by causing warm air to rise and cold air to sink
If Bob wants to build a water slide, what should he make it out of so that he travels the fastest?
plastic, because friction will be low
by decreasing the effort necessary to raise an object
That the car is traveling at a speed of 65 mph, then it slows down to 40 mph
potential energy changing into kinetic energy.
because there are fewer air molecules as altitude increases
calm weather as air sinks
It has mechanical energy in the form of kinetic energy.
by causing warm air to rise and cold air to sink
How does the convection of air produce thunderstorms?
plastic, because friction will be low
by decreasing the effort necessary to raise an object
That the car is traveling at a speed of 65 mph, then it slows down to 40 mph
potential energy changing into kinetic energy.
because there are fewer air molecules as altitude increases
calm weather as air sinks
It has mechanical energy in the form of kinetic energy.
by causing warm air to rise and cold air to sink
A high pressure system can cause...
plastic, because friction will be low
by decreasing the effort necessary to raise an object
That the car is traveling at a speed of 65 mph, then it slows down to 40 mph
potential energy changing into kinetic energy.
because there are fewer air molecules as altitude increases
calm weather as air sinks
It has mechanical energy in the form of kinetic energy.
by causing warm air to rise and cold air to sink
Why does air pressure decrease from the troposphere to the exosphere?
plastic, because friction will be low
by decreasing the effort necessary to raise an object
That the car is traveling at a speed of 65 mph, then it slows down to 40 mph
potential energy changing into kinetic energy.
because there are fewer air molecules as altitude increases
calm weather as air sinks
It has mechanical energy in the form of kinetic energy.
by causing warm air to rise and cold air to sink
How can a pulley make work easier?
plastic, because friction will be low
by decreasing the effort necessary to raise an object
That the car is traveling at a speed of 65 mph, then it slows down to 40 mph
potential energy changing into kinetic energy.
because there are fewer air molecules as altitude increases
calm weather as air sinks
It has mechanical energy in the form of kinetic energy.
by causing warm air to rise and cold air to sink
If a car is traveling at variable speed, what does that mean?
plastic, because friction will be low
by decreasing the effort necessary to raise an object
That the car is traveling at a speed of 65 mph, then it slows down to 40 mph
potential energy changing into kinetic energy.
because there are fewer air molecules as altitude increases
calm weather as air sinks
It has mechanical energy in the form of kinetic energy.
by causing warm air to rise and cold air to sink
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