Physics Intro

Friction causes objects to

• speed up

• slow down

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Kinetic energy is

• energy in motion

• stored energy

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You are carrying a lunch tray when you bump into the edge of a table.  Although the tray did not tip, your milk falls off of the front of the tray.

• Newton's
  1st
  Law of Motion

• Newton's
  2nd
  Law of Motion

• Newton's
  3rd
  Law of Motion

What is the net force?

• 400 N Up

• 400 N Down

• - 400 N Down

• 800 N Down

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Something that takes up space and has mass.

• volume

• mass

• density

• matter

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A 50 kg skater pushed by a friend accelerates 5 m/sec².  How much force did the friend apply?

• 45 N

• 15 N 

• 10 N

• 250 N

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This triangle is used to determine speed. 

• True

• False

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A 20 kg bike accelerates at 10 m/s².  what was the force?

• 25 Newtons

• 20 Newtons

• 200 Newtons

• 10 Newtons

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What atomic particles have a positive charge?

• Neutrons

• Electrons

• Protons

• Photons

• All of the above

Electricity is the flow of ________.

• Neutrons

• Electrons

• Protons

• Photons

• All of the above