Balanced and Unbalanced Forces Newton Laws

What is the force that the desk exerts on the dictionary?

• none

• 15 N

• 1.5 N

• 150 N

Tags

NGSS.HS-PS2-1

A push or a pull is called a

• Gravity

• Force

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NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which one of Newton’s Laws of Motion best explains why the dishes do not move when the table cloth is removed?

• Newton's 1st Law

• Newton's 2nd Law 

• Newton's 3rd Law 

• Newton's Law of Biology

Which is the best example of Newton's First Law of Motion?

• a basketball thrown in the air falls to the ground

• a soccer ball remains motionless until it is kicked by a player

• a baseball player swings at an approaching ball

• an ice skater pushes back from a wall and moves backwards

A book weighs 4 N. When held at rest in your hands, the net force on the book is
 

• 0 N.

•  0.4 N.

•  4 N.

•  39 N.

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NGSS.HS-PS2-1

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

• 25 Newtons

• 20 Newtons

• 200 Newtons

• 10 Newtons

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NGSS.MS-PS2-2

When a cannon fires a cannonball we observe Newton's third law. Which force is the reaction force?

• The cannon moving forward

• The cannonball moving forward

• The cannon moving backward

• The cannonball moving backward

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NGSS.MS-PS2-1

What is the net force?

• 5000 N right

• 4000 N right

• 40 N left

• 4000 N left

Tags

NGSS.MS-PS2-2

Which of the following shows the direction of the friction force?

• A

• B

• C

• D

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NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is the standard unit force is measured in?

• Newtons

• pounds

• grams

• meters