Work and Energy

Something that changes the speed, direction, or shape of another object by pushing or pulling

• force
• motion
• science
• sponge bob

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Energy of motion

• kinetic energy
• potential energy

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What is needed to calculate work?

• force

• distance

• time

• mass

All forces have______

• joules
• size and direction
• height
• weight

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NGSS.MS-PS2-1

What must occur to a shopping cart at rest in order to make it roll forward?

• A force must be provided to overcome gravity.
• Balanced forces must be acting on the cart.
• An unbalanced force applied to the cart pushing or pulling it forward.
• The unbalanced force acting upon it must be smaller than that of friction.

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What type of energy is caused by an object’s vibration?

• Electrical
• Sound 
• Thermal
• Light

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When energy moves from one form to another it is said to be _________________

• Transformed
• Eliminated
• Lost.
• Created 

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The energy associated with motion is called

• Kinetic energy
• Elastic potential energy
• Gravitational potential energy
• Nuclear energy

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Which of the following has kinetic energy?

• a rock poised for a fall

• an archer's bow that is drawn back

• a rolling bowling ball

• A spring that has been compressed

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When you release a stretched rubber band, the rubber band has ________ energy. 

• kinetic 
• potential
• none of the above
• all of the above 

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