Newton's Laws + Power and Work REVIEW

Newton's first law of motion states that an object will stay in motion or motionless UNLESS it is acted with an __________ force

• balanced

• unbalanced

• powerful

• weak

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NGSS.MS-PS2-2

what is the correct formula for force?

• F = m X a

• $F=\frac{m}{a}$

• $F=\frac{a}{m}$

• $F=a\times v$

Tags

NGSS.MS-PS2-2

What is inertia?

• the same thing as gravity

• a group of particles that combine to make force

• a tendency to do nothing or to remain unchanged

• none of the above

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NGSS.MS-PS2-2

The 3rd law of motion states that for every action, there is a EQUAL and OPPOSITE reaction. True or False.

• True

• False

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NGSS.MS-PS2-1

If you push your hands against your wall, the wall pushes back on you with ________ force

• weaker

• stronger

• neutral

• equal

Tags

NGSS.MS-PS2-1

What's the formula for WORK?

• Force x Distance

• Force + Distance

• Mass x Acceleration

• Distance / Time

What is a JOULE?

• A unit of force

• A unit of work

• A unit of power

• A unit of energy

Power is the rate of...

• something a super hero has

• how much strength you have

• one form of energy transfers to another one.

• not sure, can I leave?

Tags

NGSS.MS-PS3-5

Watts (unit of power) was named after which physicist?

• James Watt

• Issac Newton

• James Prescott Joule

• Larry the Cable Guy

What is the formula for POWER?

• Power = Time + Work

• Power = Work / Time

• Power = Work / Distant

• Power = Newton x Joule