Middle School Science

• Wavelength = 1.0 cm

• Wavelength = 2 units

• Wavelength = 1 unit

• Wavelength = 0.5cm

Tags

NGSS.MS-PS4-1

If a magnet is cut into unequal size pieces, how many north and south poles will each of the pieces have?

• Neither piece will have a north or a south pole

• Each piece will have one north and one south pole

• Each piece will have one pole, either north or south

• Only the larger piece will have a north and a south pole

• flat surface facing the bulb

• convex surface facing the bulb

• . opaque surface facing the bulb

• concave surface facing the bulb

Tags

NGSS.MS-PS4-2

Which of the following questions explains the type of wave which can travel at the speed of light?

• What is an electromagnetic wave?

• What is a longitudinal wave?

• What is a mechanical wave?

• What is a transverse wave?

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

• wave 1

• wave 2

• wave 3

• wave 4

Tags

NGSS.MS-PS4-1

• A. The battery supplies charges to the coil

• The battery supplies electrons to the coil

• The battery removes charges from the coil.

• The battery removes electrons from the coil.

Tags

NGSS.MS-PS2-3

• . increase the length of the nail

• . increase the length of the nail

• increase the voltage of the battery

• increase the diameter of the wire used to make the coil

• The sound wave produces compressions in the air where the air particles are close together because the air pressure is lower in these regions

• The sound wave pushes the air particles along the column of air as it moves from left to right because the sound wave takes up space

• The sound wave produces compressions and rarefactions in the column of air. In compressions, the air particles are close together. The compressed air particles move with the sound wave.

• The sound waves produce compressions and rarefactions in the column of air. The compressions move through the air particles, but the air particles do not move with the sound wave.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

• The pattern of iron particles is created by the north pole of one magnet facing the south pole of the other magnet.

• The pattern of iron particles is created by opposite poles of the two magnets attracting each other.

• The pattern of iron particles is created by the south pole of one magnet facing the south pole of the other magnet because only south poles attract each other.

• The pattern of iron particles is created by the repulsion of like magnetic poles, we cannot determine if the poles are north or south polarization.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

• The iron particles are lining up with the electric field created by the magnet.

• The iron particles are lining up with the lines of magnetic force that exist outside of the bar magnet.

• The iron particles are lining up with the magnetic field created when an electric current passes through the metal bar

• The iron particles are lining up with the magnet field of the Earth, because the magnet is pointing toward the Earth’s north and south poles.

Tags

NGSS.MS-PS2-5