6 P 3

What will initially happen when a metal rod with a temperature of 60°C is placed into a 5°C cold water bath?

• Heat will travel out of the metal rod and into the water.

• Heat will travel out of the water and into the metal rod.

• The temperatures of the metal rod and the water will both increase.

• The temperatures of the metal rod and the water will both decrease.

Tags

NGSS.MS-PS1-4

Lin notices that the temperature of the room increases when the afternoon sun shines through the window. She experiments by covering the window using four different materials to find out which works best to reduce the temperature of the room. Which material works best?

• black paper, because it reflects light

• white paper, because it absorbs light

• aluminum foil, because it reflects light

• newspaper, because it absorbs light

Tags

NGSS.MS-ETS1-3

NGSS.MS-PS3-3

NGSS.MS-PS3-4

People who work on electrical power lines wear thick rubber gloves. Why are their gloves made of rubber?

• Rubber conducts heat.

• Rubber conducts electricity.

• Rubber does not conduct heat.

• Rubber does not conduct electricity.

Which placement of air vents in a house provides the most efficient heating?

• on the floor, because warm air rises

• on the ceiling, because warm air sinks

• halfway up the wall, so that the warm air can spread evenly through the room

• close to the temperature control, so the temperature will change less

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Which best explains why light from the sun can warm water in a glass container?

• Light travels very fast.

• Light travels in straight lines.

• Water reflects the light energy.

• Water absorbs the light energy.

Tags

NGSS.MS-PS3-5

NGSS.MS-PS4-2

The diagram below shows a glass pot containing water on a stove.

• conduction

• convection

• evaporation

• radiation

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

A girl looks into a mirror and sees her image. Which word best describes what is occurring?

• absorption

• reflection

• refraction

• scattering

Tags

NGSS.MS-PS4-2

Which region of the electromagnetic spectrum having the highest frequency could penetrate the most materials?

• gamma rays

• microwaves

• radio waves

• ultraviolet rays

Tags

NGSS.HS-PS4-4

The image below shows a metal fork resting on the edge of a pan holding food that is cooking on a stove.

• The fork became hot because it is a good heat conductor.

• The fork became hot because it is a good heat insulator.

• The fork became hot because of heat convection.

• The fork became hot because of radiation.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Why does it feel warmer for a person to dress in layers on a cold winter day instead of wearing just a coat?

• The extra layers scatter the cold air.

• The extra layers keep cold close to the body.

• The extra layers increase the absorption of heat from the sun.

• Air between the layers acts as insulation, keeping body heat closer to the skin.