A basketball is lying on the floor. A student wants to investigate when the ball will move. When will the ball show movement?

• when friction acts on it

• when a force acts on it

• when it is on the shelf

• it will never move

Tags

NGSS.MS-PS2-2

Roger is playing tennis. When the ball and racket meet and push on each other, what happens to the ball?

• The ball spins.

• The ball stops moving.

• The ball changes direction.

• The ball falls to the ground.

Tags

NGSS.MS-PS2-1

Timmy wants to try his new set of racing cars. He leans a board against his bed to make a ramp. He wants to see if his racing cars will go faster. What does he do to the racing cars to see if they will go faster?

• He gives his cars a gentle push.

• He spins each car.

• He gives the cars a big push.

• He throws each car.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-5

A student decided to make her own marble maze at home. This is her homemade marble run.

After using the marble run several times, the student wants to slow the marble down. How can the student slow the marble down.

• Make the marble maze track less slanted.

• Make the marble maze longer.

• Make the marble maze track more slanted.

• Make the marble maze shorter.

Tags

NGSS.MS-ETS1-1

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Two students are building a marble maze. What can they do in the maze to increase the speed of the marble as it goes through the maze?

• The student can have upward slopes for the marble to roll up.

• The student can have downward slopes for the marble to roll down.

• The student can include pointed surfaces throughout the whole maze.

• The student can include a rough-textured surface in certain parts of the maze.

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

NGSS.MS-PS2-2

NGSS.MS-PS3-1

A group of students create a device to increase the speed of two cars rolling down a ramp. The student notices that Car A moves much faster than Car B. Which of the following can be a reason for the difference in speed?

• Car A is larger than car B.

• Car A has more wheels than Car B.

• Car A has smoother wheels than Car B.

• Car A has a smoother ramp than Car B.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Tom and Ari have two similar Plasticine balls. Tom is trying to stretch his Plasticine ball, while Ari is trying to flatten his.

How are their forces different?

• Tom is twisting and Ari is pulling.

• Tom is pulling and Ari is pushing.

• Tom is pushing and Ari is pulling.

• The forces are the same.

A student wants to demonstrate how pushing on an object will change the motion of the object. Which of the following should the student do?

• Tug on a rope that another student is holding.

• Drag a bin around the room.

• Kick a soccer ball across the field.

• Hold a piece of paper.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Two students stand at the top of a hill with a few objects. They place the objects at the top of the hill, but nothing happens. What can the students do to demonstrate that force impacts the object at rest.

• The students should sit down next to the objects.

• The students should push the objects down the hill.

• The students should wait until the objects start to move.

• The students should go inside the classroom to demonstrate.

Tags

NGSS.MS-PS2-2

Mario wants to try his new set of racing cars. He leans a board against his bed to make a ramp. Mario wants to see his racing cars will go faster. What does he do to the racing cars to see if they will go faster.

• He spins each car.

• He throws each car.

• He gives the cars a big push.

• He gives his cars a gentle push.

Tags

NGSS.3-PS2-1

NGSS.3-PS2-2