Physics Quiz

If a girl is climbing up a ladder while carrying a light bulb, is she doing any work?

• yes, the object is moving in the direction of the force

• yes, she has something in her hand

• no, she is not moving the object

• no, the bulb doesn't weigh enough to count

How much work is a cat doing if it is picking up a dead mouse (1N) off the ground? (.2m)

• none, cats don't do work

• none, the mouse is not alive

• 0.2 J of work

• 1.2 J of work

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What is energy?

• the ability to turn on a light

• the amount of electricity needed to light one light bulb

• the ability to do do work

• the temperature of an oven when making brownies

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How much power is used if 5 joules of work are done in 1 second?

• 0.5 watts

• 1/5 watts

• 5 watts

• 1 watt

What is the term used to describe the opposition that a device or material offers to the flow of direct current?

• Resistance

• Capacitance

• Inductance

• Conductance

What is the unit of electrical resistance?

• Volt

• Ampere

• Ohm

• Watt

Which law states that the total energy in a closed system remains constant?

• Law of Conservation of Momentum

• Law of Conservation of Energy

• Newton's First Law of Motion

• Hooke's Law

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The energy that is stored in an object or system.

• Convert

• Potential Energy

• Kinetic Energy

• Attract

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What in this image most represents physics?

• Tiger

• Fireworks

• Mountain

• Airplane

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Which has elastic potential energy?

• pencil on a desk

• stretched rubber band

• food on a plate