Force and Motion 2

A train travels at a constant speed of 60 miles per hour. How many miles will the train travel in 4 hours? (distance = speed × time)

• 15 miles

• 56 miles

• 180 miles

• 240 miles

Pam ran down the sidewalk to school with her empty backpack. After school Pam’s backpack was loaded with books. Which best describes the force required to carry her book bag home?

• It took no force to carry the loaded book bag home.

• It took a greater amount of force to carry the loaded book bag home.

• It took a lesser amount of force to carry the loaded book bag home.

• It took the same amount of force to carry the loaded book bag back home.

Tags

NGSS.MS-PS2-2

The graph displays the motion of an object.

Which statement best describes the motion of the object from second 3 to second 4?

• The object is moving at a constant speed.

• The object is decreasing its speed.

• The object is moving backwards

• The object is not moving.

Tags

NGSS.MS-PS3-1

A student is pushing a box of books across the floor. The student stops, removes some of the books, and then continues pushing the box across the floor. Which best explains how removing some of the books affected the motion of the object?

• Removing some of the books reduced the mass of the box, and less force was needed to push it across the floor.

• Removing some of the books reduced the mass of the box, and more force was needed to push it across the floor.

• Removing some of the books did not affect the amount of force needed to push it across the floor.

• Removing some of the books decreased the mass of the box, and the same amount of force was needed to push it across the floor.

Tags

NGSS.MS-PS2-2

Ann goes down the slide at the playground. At the bottom, she slides off and stops. Which most likely explains why she stops moving?

• Without the slide under her, the ability to move disappears.

• The energy needed for movement is used up on the slide.

• The force of her hitting the ground causes the stop.

• The force pulling her forward is only the slide, not the ground.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-5

A car traveled for ten minutes. In the first seven minutes, the car traveled seven miles. In the last three minutes, the car traveled one mile. Which best describes the motion of the car in the last three minutes?

• The car stopped.

• The car sped up.

• The car slowed down.

• The car went twice as fast.

Why is it important for basketball players to wear shoes with tread when playing?

• to increase the speed of the player

• to decrease the force between the player and the floor

• to increase friction between the floor and the player’s feet

• to decrease the amount of force needed for the player to move

Tags

NGSS.MS-ETS1-1

What causes a ball to move through the air when it is thrown?

• heat

• force

• friction

• gravity

Tags

NGSS.MS-PS2-4

A long, round balloon is fastened to the end of a toy rocket. When the balloon is blown up and released, the rocket launches into the air. Which force causes the rocket to launch?

• the mass of the balloon

• the weight of the rocket

• the pull of gravity on the rocket

• the air released from the balloon

A group of six people are on a boat. Three people are in the front and three people are in the back. The front of the boat is sinking lower than the back of the boat. Whichbest explains why the front of the boat is sinking lower?

• There are heavier items in the back of the boat than in the front of the boat.

• The pressure of the water is greater against the front of the boat.

• The people in the front of the boat are closer together.

• The people in the front of the boat are heavier.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4