If a bowling ball and bag of chips were dropped off a tower on the moon, where there is no air, what would happen?

• The bowling ball hits the ground first

• The bag of chips hits the ground first

• Both objects hit the ground at the same time

• Both objects will not move at all. They would just float.

If two bowling balls have equal masses but one ball is accelerating faster than the other they will still have the same force.

• True

• False

Tags

NGSS.3-PS2-1

Which of the following surfaces has the least amount of friction?

• a gravel driveway

• a dirt road

• an ice covered road

• a road covered in sand

Tags

NGSS.3-PS2-1

Your mom puts a plastic cup, a glass plate and a big pot of spaghetti and meatballs on the table. Which statement describes the gravitational force acting on the objects?

• The plastic cup experiences the least amount of gravitational force

• All the objects experience the exact same amount of gravitational force

• The pot of meatballs and spaghetti experiences the least amount of gravitational force

• The glass plate experiences the greatest amount of gravitational force

An object at rest is said to have a(n)

• balanced force

• unbalanced force

• no force

• net force

Tags

NGSS.3-PS2-1

If 2 football players with different masses run into each other, which of the following explains what would happen? (Select all that apply)

• both players would accelerate at the same rate

• The more massive person would accelerate more

• The would fall in the direction the more massive person was going

• The person with more mass would fall forward while the person with less mass would fall backward

Tags

NGSS.3-PS2-1

NGSS.4-PS3-3

A book is sitting on a shelf. Which of the following are forces that are allowing this to remain at rest? (Select all that apply)

• The force of gravity is pulling the book downward

• The force of the bookshelf (normal force) is pushing up on the book

• The force of gravity is pulling the bookshelf downward

• The force of the floor (normal force) is pushing up on the bookshelf

Tags

NGSS.3-PS2-1

NGSS.5-PS2-1

What is the resulting force and direction of motion?

• 2 N to the left

• 2 N to the right

• 8 N to the left

• 8 N to the right

Tags

NGSS.3-PS2-1

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.

Tags

NGSS.3-PS2-1

NGSS.3-PS2-2

What is the Average Speed?
Distance: 10m
Time: 5s

• 2 m/s

• 1/2 m/s

• 50 m/s

• 100 m/s