Science Games

A wheelbarrow is experiencing two forces. One is pushing 5 N to the east and the other 5 N in the exact opposite direction. What must be true of the wheelbarrow's motion?

• it is moving

• it is accelerating

• it is slowing down

• it isn't accelerating

Tags

NGSS.MS-PS2-2

A box experiences a force of 2 N to the left and 3 N to the right. Which is true of the box's motion?

• the box will slow down

• the box's velocity will be 1 m/s

• the box's velocity will not change

• the box will experience acceleration

Tags

NGSS.MS-PS2-2

In a classroom experiment, a student rubs a comb against her hair. The comb is then brought near bits of paper resting on a surface. Which of these can be concluded if the comb picks up the bits of paper?

• The comb is an insulator, but paper conducts electricity.

• The comb had a net charge on it, and it attracted a neutral object.

• The comb was left uncharged, and it attracted a positively charged object.

• The comb was positively charged, and it attracted a negatively charged object.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Which electromagnet would have the most strength?

• an electromagnet with 5 coils

• an electromagnet with 10 coils

• an electromagnet with 15 coils

• an electromagnet with 20 coils

Which change would result in a stronger electromagnet?

• Reducing the number of batteries

• Increasing the voltage of the battery

• Substituting another metal for the iron core

• Decreasing the number of coils around the iron core.

Tags

NGSS.MS-PS2-3

Billy was blowing up some balloons for his sister's birthday party. Sally, his sister, grabbed a balloon and rubbed it on his head. Billy's hair began to stick up in little spikes all over his head! Then Sally took the ballon and put it up against the wall. It stuck in place! "We learned about this in science class," Sally said. Billy's hair stood up and the balloon stuck to the wall because of

• electromagnetism

• static electricity

• current electricity

• a magnetic force field

A convex lens bulges outward in its center. and it refracts light rays towards its center. Which represents a convex lens?

• A

• B

• A and B

• Neither A or B

Looking at the wave diagram, which best describes the wave?

• • 
    

    The period of the wave is decreasing.

• he energy of the wave is decreasing.

• The frequency of the wave is decreasing.

• The wavelength of the wave is decreasing.

Tags

NGSS.MS-PS4-1

You may have seen what a magnet will do to iron filings, arranging them into specific patterns like the one you see here. This arrangement is due to the ____________ that is produced by the magnet.

• vibration

• force field

• magnetic field

• magnetic impulse

Tags

NGSS.MS-PS2-3

Bella notices when she looks through a magnifying glass objects appear to be larger. A magnifying glass is used to magnify, or makes objects look larger. It uses a special lens mounted in a frame and usually has a handle. What type of lens does a magnifying glass have?

• concave

• reflecting

• convex

• prism

Tags

NGSS.4-PS4-2