Physics

The force that one surface exerts on another when the two rub against each other is called

• friction.

• inertia.

• acceleration

• gravity

According to Newton’s third law of motion, when a hammer strikes and exerts force on a nail, the nail

• creates a friction with the hammer.

• disappears into the wood.

• exerts an equal and opposite force on the hammer.

• moves at a constant speed.

Tags

NGSS.MS-PS2-1

Define the term inertia.

• the amount of matter in an object

• the amount of space an object takes up

• the tendency of an object to resist a change in motion, determined by mass

• The force that one surface exerts on another when the two rub against each other

Tags

NGSS.MS-PS2-2

Peanut ran 50 meters in 10 seconds.  What was Peanut's average speed?

• 2 m/s
• 5 km/h
• 5 m/s
• 5 m/s North

Tags

NGSS.MS-PS3-1

A force is a ____________________

• push or pull
• motion
• speed
• net force

Tags

NGSS.MS-PS2-1

With simple machines, you exchange force for ...

• distance

• energy

• work

• effort

Which mirror(s) create a real image?

• Concave

• Convex

• Plane

Which mirror(s) create virtual image?

• plane

• concave

• convex

Which is not a type of friction?

• rolling

• static

• sliding

• fluid

• air

Newton's first law of Motion is