Q2 Practice

Anne and Juan rolled four different objects down a ramp. They measured the distance each object rolled and the time until each object came to a stop. They plotted each point and connected it with a line for each object on the graph below. Which object has the greatest average speed?

• Object A

• Object B

• Object C

• Object D

Tags

NGSS.MS-PS3-1

Which of these is the best example of kinetic energy converting into potential energy?

• A bicyclist coasting down a long hill

• A car engine moving the car forward

• A roller coaster car moving toward the top of the next hill

• A thrown ball falling toward the ground

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-5

Which statement below explains the possibility for a distance versus-time graph to be a vertical line?

• It is not possible.

• When an object is moving at constant speed.

• When an object is not moving.

• When an object is moving 2 meters per second.

A ball is tossed into the air like in the diagram below. Which of the following statements about the ball is the BEST example of the Law of Conservation of Energy? (6.P.11.1)

• The ball has less total energy at Y than at W.

• The ball has more kinetic energy at X than at Z.

• The ball has more potential energy at Z than at X.

• The ball has the same amount of total energy at W as at X.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-5

Refer to the graph below and answer the following question. What do you notice about the speed of the car during the first 3 seconds? (6.P.12.1)

• It speeds up, then slows down.

• It is moving at a constant speed.

• It is not moving.

• It slows down, then speeds up.

Tags

NGSS.MS-PS3-1

What happens when an unbalanced force acts on an object? (6.P.13.3)

• The force must be the same as the reaction force.

• The force is equal to the weight of the object.

• The motion of the object changes.

• The motion of the object does not change.

Tags

NGSS.MS-PS2-2

Which of the following statements demonstrates an unbalanced force? (6.P.13.3)

• A dog pushes its dog dish to the left with a force of 4 N. A cat pushes it to the right with a force of 4 N.

• A child pushes a toy car to the left with a force of 3 N. Their parent pushes the same toy car to the right with a force of 3 N.

• A woman pushes a bike to the right with a force of 10 N. Another woman pushes the same bike to the left with a force of 10 N.

• A man pushes a desk to the right with a force of 16 N. Another man pushes the same desk to the left with a force of 10 N.

Tags

NGSS.MS-PS2-2

During field day, team E competes against team F. What conditions would be necessary in order for team F to win? (6.P.13.3)

• One person on team E falls down and their team loses a force 100 N.

• One person on each team E and F falls down and loses a force of 100 N.

• One person on each team E and F pulls harder with an additional force of 75 N.

• Two people on teams E and F each pull harder with an additional force of 50 N each.

Tags

NGSS.MS-PS2-2

Through freezing and thawing, a boulder is broken into smaller pieces. What is this an example of? (6.E.6.1)

• chemical weathering

• abrasion

• physical weathering

• deposition

Tags

NGSS.MS-ESS2-2

Scientists notice that a river delta has been gradually getting larger and shallower over the past 50 years. What is the most likely reason for this change? (6.E.6.1)

• The river current increases and there is no change in the amount of sediment.

• Sediment is deposited as the river slows down.

• The river current slows down and there is no change in the amount of sediment.

• Sediment is deposited as the river speeds up.

Tags

NGSS.MS-ESS2-2