Forces and motion unit review

Define Speed

• The rate something accelerates

• The rate something moves

• The amount of time it takes to move

• The amount of acceleration an object experiences

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NGSS.MS-PS3-1

Newtons first law

• The law of action/reaction

• The law of equal and opposite forces

• The law of accelerative proportionality

• The law of inertia

What is a force?

• a push or pull
• speed or acceleration 
• potential or kinetic energy
• balanced or unbalanced force

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NGSS.MS-PS2-2

NGSS.MS-PS2-1

Force is measured in....

• Galileos 
• Newtons
• Di Vincis
• Einsteins 

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NGSS.MS-PS2-2

NGSS.MS-PS2-1

Inertia is....

• for every action, there is an equal and opposite reaction
• larger objects take more force to move 
• an object in motion tends to stay in motion unless acted on by an opposite force
• a push that acts in the opposite direction and it slows down.

Tags

NGSS.3-PS2-1

NGSS.3-PS2-2

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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NGSS.MS-PS2-1

If you push a tennis ball, a bowling ball, and a basketball with the same amount of force, which one will go farthest?

• bowling ball

• tennis ball

• basketball

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NGSS.MS-PS2-2

A force of 90N is applied to each cart below, which one will accelerate the fastest?

• Cart 1
• Cart 2
• Cart 3 
• Cart 4

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NGSS.MS-PS2-2

Which graph shows an object not moving?

• A
• B
• C
• D

Which graph shows an object moving at a constant rate?

• A
• B
• D
• E

Tags

NGSS.MS-PS3-1