Physics Review

Alan travels 100km in 5hrs. Find his average speed in km/h

• 5km/hr
• 10km/hr
• 50km/hr
• 20km/hr

What is the net force?

• 5000 N right
• 4000 N right
• 40 N left
• 4000 N left

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

When a car goes around a corner at 20 mph, why do we say it  accelerates?

• The car is accelerating because of the velocity is constant
• The car accelerates because it's going 20 mph
• Cars always accelerate when they are in motion
• The car is accelerating because it's changing direction

What does this graph represent?

• Constant speed
• Acceleration
• Not moving
• Turning around

LT4: The graph shows Ashley riding her bike to Maria's house. 
What was occurring from point B to point C?

• She was increasing her speed.
• She stopped for 4 minutes.
• She was decreasing in speed.
• She turned around and went home.

Tags

NGSS.MS-PS3-1

Which example demonstrates the concept of inertia?

• A coin falls straight down into a glass when the paper holding it in place is quickly removed.

• A ball that is thrown at a brick wall bounces back toward the thrower.

• Force equals mass times acceleration

• Action-Reaction

Mrs. Kurtishi's car has run out of gas and she is trying to push it to the side of the ride. The car has a mass of 1,200 kg and Mrs. Kurtishi pushes with an acceleration of 0.07 m/s². What is the force that Mrs. Kurtishi is applying to the car?

• 840 N

• 84 N

• 17142.86 N

• 0.000058 N

Tags

NGSS.MS-PS2-2

Suppose you are at an ice-skating rink. You push a flat smooth object forward on the ice with your hand and let go of it. If the object could slide without friction on the ice, how would it move?

• It would curve to the left a constant speed.

• It would curve to the right at a decreasing speed.

• It would move straight ahead at a constant speed.

• It would move straight ahead at a decreasing speed.

Tags

NGSS.MS-PS2-2

An archer pulls the bowstring back, then releases the string and the arrow flies forward. Pulling the string back is the...

• Action force

• Reaction force

• Net force

• Inertia

Tags

NGSS.MS-PS2-1

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