Top 200

A textbook is dropped from a second floor window and falls to the ground. What happens to the velocity as the book falls to the ground?

• the velocity increases

• the velocity decreases

• the velocity remain constant

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

A baseball is thrown up into the air. What happens to the velocity as the ball rises in the air?

• the velocity increases

• the velocity decreases

• the velocity remains constant

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Two rocks with different size and mass are dropped from the same height. Which of the rock will reach the ground first?

• greater rock

• smaller rock

• both reach the ground at the same time

Tags

NGSS.MS-PS2-4

If you throw a baseball straight up, what is its velocity at the highest point?

• 9.8 m/s²

• 9.8 m/s

• 0 m/s²

• 0 m/s

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-4

How long did it take this object to travel back to its reference/starting point?

• 20 s

• 30 s

• 60 s

• 100 s

A unicyclist pedals 40 hours at 5 miles per hour without making any stops. How far does she get?

• 200 miles

• 8 miles

• 35 miles

• 45 miles

A ball of clay is thrown at a wall at a velocity of 28.0 m/s.  After it hits the wall, it takes 0.020 s to stop.  What is the acceleration of the clay when it hits the wall?

• 1400 m/s²

• -1400 m/s₂

• 0.56 m/s²

• -0.56 m/s²

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A golf ball accelerates off a tee at 15m/s², changing its velocity from 0m/s to 50 m/s down the fairway. How long did it take the golf ball to accelerate?

• 750 seconds

• 35 seconds

• 0.3 seconds

• 3.3 seconds

What does this graph represent?

• Constant Speed

• Acceleration

• Not moving

Tags

NGSS.MS-PS3-1

What are the darker lines called?

• roads

• index contour

• contour interval

• waves