8th grade science STAAR review 2

<--------8N  4N-------->

• 2N
• 12N
• 4N
• 32N

Tags

NGSS.MS-PS2-2

A greater applied force is required to move an object with a greater mass than one with a smaller mass.

• True
• False

Tags

NGSS.MS-PS2-2

If two forces act on an object in the same direction, the net force is the _____________

• the difference between the two forces
• the sum of the two forces
• Only one of the forces acts on the object
• DOOMSDAY!

Tags

NGSS.MS-PS2-2

Total distance divided by total time is

• average speed
• constant speed
• instantaneous speed
• acceleration

Pushing  a child on a swing is easier than pushing an adult on the same swing. 

• 1st Law 
• 2nd Law

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

Which of Newton's laws is illustrated when a magician pulls a tablecloth out from under the dishes without disturbing them?

• first
• second
• third 
• fourth

What is Newton's First Law

• F=ma
• Every action has an equal and opposite reaction
• An object at rest stays at rest, an object in motion stays in motion. 
• Friction 

Which of the following IS NOT an example of work being done?

• Pushing a cart in a store
• Shooting a basketball
• A stand off in tug of war
• Running a mile

Tags

NGSS.HS-PS3-2

What kind of energy is in a moving skateboard?

• Potential
• Kinetic

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

NGSS.MS-PS3-4

 What kind of energy is in gasoline in a car tank (car is not on)?

• Potential
• Kinetic

Tags

NGSS.MS-PS3-2