SCIENCE 8 REVIEW!

Who discovered the law of gravity and the laws of motion?

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NGSS.HS-PS2-1

NGSS.HS-PS2-4

How many laws of motion are there?

• 1

• 2

• 3

• 4

Tags

NGSS.HS-PS2-1

A truck is used to pull a car with a constant force of 300 N. The mass of the car is 150 kg, what is the acceleration of the car?

• 2 m/s^2

• 3 m/s^2

• 4 m/s^2

• 5 m/s^2

Tags

NGSS.HS-PS2-1

Which of the following shows positive work done?

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Tags

NGSS.HS-PS2-1

Which of the following shows negative work done?

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Which of the following shows zero work done?

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Which of the following is the correct formula if you're going to solve for the Work done?

• W = F x a

• W = F x m

• W = M x d

• W = F x d

What is the unit of Work?

• Watt

• Joule

• Newton

• Kg

What is the unit of Force?

• Watt

• Joule

• Newton

• Kg

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

How much work is done by a shopper in pushing her grocery cart by a force of 15 N through a distance of 2 m?

• 15 J

• 20 J

• 25 J

• 30 J