Work, force, and motion

Two factors that determine work are

• force

• acceleration

• mass

• distance

• velocity

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units of force are

• newtons

• grams

• joules

• meters

units for work are

• newtons

• joules

• meters

• seconds

if you push a cart with a force of 60 N for 2 m... how much work have you done

• 120 J

• 30 J

• 120 N

• 30 N

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If these boys are pulling with the same amount of force.  What will happen?

• The boy in blue will win.
• They will not move at all.
• The boy in red will win.
• Both will fall down.

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The measure of the pull of gravity on an object is ___________________.

• motion
• weight
• speed
• friction

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Is this a balanced or unbalance force?

• Balanced
• Unbalanced
• Neither one
• Both

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Which direction will the object move?

• Up
• Down
• Right
• Left

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What is the net force of this object?

• 0N
• 50N
• 25N
• 5N

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Imagine a bat swinging with a force of 1200 N, hitting a ball pitched with a force of 400 N. At what net force does the ball move away from the bat?

• 1600 N
• 800 N
• 400 N
• Net force of 0 N

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