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Magnets have a negative and positive pole. What happens if you try to touch the positive ends of two magnets together?

• The positive poles will repel each other

• The positive poles will be attracted to each other

• The positive poles will neither attract nor repel each other

• The positive poles will create gravity and attract other objects

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

A toy car rolling along different surfaces will experience different amounts of friction. The toy car would encounter the most friction when rolling on which of the following surfaces?

• a sandy beach

• a sheet of glass

• a smooth wooden board

• a piece of construciton papar

While on a camping trip, Shane and Katie are traveling in a boat on a river. On their trip, the river's current carries them down the river at a speed of 5 meters per second (m/s). They don't need to row because the current is carrying them in the direction they need to go.  
If no other forces are acting on the boat, which of these statements describes the motion of the boat as it travels downstream?

• it speeds up

• it slows down

• it stays the same

• it changes direction

Will and Tammy are moving a dresser. They are arguing about which direction to move it. Will is pushing the dresser with a force of 5 newtons towards Tammy. Tammy is pushing the dresser towards Will with a force of 10 newtons. What happens to the dresser?

• The dresser does not move

• The dresser moves towards Will

• The dresser moves towards Tammy

• The dresser moves towards Tammy, then back towards Will

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Maria pushes with equal force on two objects. Object 1 has twice as much mass as Object 2. Which of the following statements is true?

• Both objects will remain still

• Object 1 will accelerate faster than object 2

• Object 2 will accelerate faster than object 1

• Both objects will accelerate at the same rate

Tags

NGSS.MS-PS2-2

Candice is rearranging the furniture in her room. She has two different dressers that are the same size. When she pushes on each dresser, she finds that it is harder to move Dresser A than it is to move Dresser B.  
Why does Candice have to push with more force on Dresser A than on Dresser B?

• Dresser A weighs less than Dresser B

• Dresser A is larger in size than Dresser B

• Dresser A has more mass than Dresser B

• Dresser A has less volume than Dresser B

Tags

NGSS.MS-PS2-2

Jonathan pushes a box on the floor and is unable to make it move. Which of the following is the best explanation for why the box does not move?

• The box has a very small mass

• Jonathan is pushing in the wrong direction

• The mass of the box requires a greater force to move it

• Friction occurs in the same direction that Jonathan is pushing

Tags

NGSS.MS-PS2-2

Darryl pushes on two different boxes. Box 1 has a greater mass than Box 2. Which of the following statements is true?

• Equal force is needed to move the boxes

• Both boxes will accelerate at the same rate

• Less force is required to move Box 1 than Box 2

• Less force is required to move Box 2 than Box 1

Tags

NGSS.MS-PS2-2

Which two tools should be used together to measure speed?

• Balance and spring scale

• Clock and a measuring tape

• Meter stick and barometer

• Ruler and graduated cylinder

Tags

NGSS.MS-PS3-1

A train is moving along a track. If the forces acting on the train are balanced, how will its motion be affected?

• Change direction

• Continue, unchanged

• Speed up

• Stop

Tags

NGSS.MS-PS2-2