6th grade- Energy

What is energy?

• motion

• storage

• something that can be renewed

• the ability to do work

Which has more potential energy?

• a 1,500kg car traveling 20m/s

• a 200kg bus traveling 100m/s

• a 300,000kg plane traveling 0m/s

• a 20kg ball rolling 40m/s

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Total energy will always change in a system of objects.

• True; energy is destroyed due to friction

• False; energy cannot be created nor destroyed

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Kinetic energy is associated with_______.

• speed

• height

• position

• matter

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You do work only when you exert a force on an object and move it

• true

• false

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Units for work are_______.

• newtons

• joules

• meters

• seconds

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What is considered work in science?

• when someone puts a lot of effort into a task

• when an object moves in the direction of an applied force

• when force is applied but no movement occurs

• work is equivalent to power

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Work transfers_______.

• power

• energy

• velocity

• effort

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Energy transformations occur when...

• energy is created through conduction

• energy changes from one form to another

• two forces slide together that are touching

• a chemical reaction takes place

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What is an example of sound energy?

• a thermometer heating up

• solar panels generating electricity

• a guitar string being plucked

• a machine in an assembly line

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