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

If you double the mass of an object with the same force apply on it, the acceleration will

• double
• cut in half
• the same
• zero

Tags

NGSS.MS-PS2-2

Which one needs a greater net force to move, a kilogram of feathers or a kilogram of iron? 

• feathers 
• iron
• same
• depends on their friction

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NGSS.MS-PS2-2

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.MS-PS2-2

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

Tags

NGSS.MS-PS2-1

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

What is the difference between mass and weight?

• mass is how much matter is in an object, and weight is the gravitational pull on that object
• mass and weight are the same
• weight affects how much mass is in an object
• weight is determined by how many atoms make up an object

What is the net force?

• 5000 N right
• 4000 N right
• 40 N left
• 4000 N left

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

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

• A
• B
• C
• D

Tags

NGSS.MS-PS2-2