Chapter 2: Forces and Motion

Besides strength, or magnitude, what does every force have?

• Gravity
• Friction
• Direction
• Magnetism

A ball is rolled across four different surfaces with the same force. Which surface will slow the movement of the ball the most?

• Tile Floor
• Grassy Field
• Paved Floor
• Cement Sidewalk

Tags

NGSS.MS-PS2-2

How do electric and magnetic forces act on different objects?

• They  only pull objects
• The only push objects
• They either push or pull objects
• They only push or pull objects when they touch each other. 

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

What happens when an object accelerates?

• Its speed or direction changes
• Only its speed changes
• Only its direction changes
• Its speed  and direction do not change

Tags

NGSS.MS-PS2-2

When you ride a roller coaster, what makess your body rise out of its seat at the top of a hill?

• Electricity
• Friction
• Gravity
• Intertia

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

How can you complete this sentence so it's always true?
"The greater the net force acting on an object,..."

• the lesser the mass of the object.
• the greater the mass of the object.
• the greater the acceleration of the object. 
• the lesser the accelaration of the object.

Tags

NGSS.HS-PS2-1

What always happens when the forces on an object are equal in strength and opposite in direction?

• The object moves
• The motion of the object does not change
• The object does not move
• The object becomes heavier

When the sun is low in the sky early in the morning, trees form 

• Long shadows
• No shadows
• Short shadows
• All sizes of shadows

Tags

NGSS.5-ESS1-2