8th Grade Science Review

Why is it harder for the boy in Image B to get down the hill?

• Motion
• Friction
• Work
• Displacement

Tags

NGSS.MS-PS2-2

Which force produces a change in motion?

• unbalanced force
• balanced force
• gravitational force
• frictional force

Tags

NGSS.MS-PS2-2

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.MS-PS2-1

Which of the following statements is true? 

• Balanced forces cause a change in motion. 
• Unbalanced forces cause a change in motion. 
• Forces do not effect the change in motion. 

Tags

NGSS.MS-PS2-2

How could you change the height of an object to increase GPE (gravitational potential energy)?

• Make the object larger
• Lower the object towards the ground
• Raise the object farther off the ground
• Make the object smaller

Tags

NGSS.MS-PS3-2

How could you change the mass of an object DECREASE GPE (gravitational potential energy)?

• Decrease the object's mass
• Increase the object's height
• Increase the object's mass
• Decrease the object's height

Tags

NGSS.MS-PS2-4

Gravitational potential energy depends on the ________ and ________ of the object. 

• Height and mass
• Friction and movement
• Mass and Movement
• Height and Friction 

Tags

NGSS.MS-PS2-4

NGSS.MS-PS3-2

What is the net force?

• 400 N Up
• 400 N Down
• - 400 N Down
• 800 N Down

Tags

NGSS.MS-PS2-2

Where do hot spots occur? 

• Boundaries of earths tectonic plates
• At the peak of the volcano
• in a geyser 
• in the middle of tectonic plates

Which island was formed by a hot spot? 

• Bahamas
• Fiji 
• Hawaii 
• The Philippians