Heat

When two objects are rubbed together they produce heat. This is called....

• Friction

• Burning

• Solar energy

• Electricity

On a hot summer day, which shirt would you put on to make sure you stay cool while you are outside playing?

• A dark red shirt

• A black shirt

• A white shirt

• A dark grey shirt

Several students in a class measured the temperature in different places around the school at 10:00 a.m. The results are shown in the table. What is the BEST explanation for why the temperatures are different?

• Some of the thermometers did not work well.

• Some of the thermometers were placed in shaded areas and some in sunny areas.

• Temperature is difficult for students to measure.

• The students took the temperatures at different times of day

Tags

NGSS.MS-ESS2-6

Mitch read that rubbing skin on skin creates more friction than rubbing skin on paper. How could he best test this?

• He could rub his hands on a doorknob, then on paper

• He could rub two pieces of paper together.

• He could rub his hands together, then on a piece of paper on a table.

• He could rub his hands together inside his classroom, then outside

Lebron James wants to play a pickup game of basketball with his friends. He needs to set his bottle of water down, but does not want it to get very hot. Where should he place his bottle so that it does not heat up very much?

• He should leave it on the black asphalt

• He should place it in a shaded area

• He should leave it on a metal bench because metal is a conductor and does not get very hot

Tags

NGSS.MS-PS3-4

Arnold wants to keep his hot cocoa warm as he travels to Ms. Frizzle's class. Which of the following items would be BEST at keeping his drink warm?

• Aluminum Foil

• Paper Napkins

• Styrofoam

• Metal

Tags

NGSS.MS-PS3-3

A student has a candy bar in a coat pocket. The coat is hanging on the coat rack. When the student went to eat the candy for snack, it melted. Which question would BEST help determine the source of heat that caused the candy bar to melt?

• Is the coat very thick?

• What is the temperature of the room?

• What size is the coat?

• How many students are in the room?

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Kim knows that most things that create light also create heat. She wants to know how much heat is given off by the bulb on her desk lamp while she is doing her homework. Which of the following would be the best way for Kim to measure how much heat the bulb puts out?

• Place a glass of ice under the lamp to see whether it will melt.

• Place a black shirt under the lamp and feel how hot it gets.

• Place her hand under the lamp to see if her hand gets warm.

• Place a thermometer under the lamp and measure the temperature.

A student measured the temperature on a sunny day in four places outside on her school campus. The thermometers below show the four temperature readings.

What can the student determine from the four readings?

• Thermometer 1 was most likely placed under a tree.

• Thermometer 2 was most likely placed on the playground.

• Thermometer 3 was most likely placed in the parking lot.

Tags

NGSS.MS-ESS2-5

The pictures show the thermometer readings over time for a cup of cold water placed outside in the sunlight.

Which of the following shows how the thermometer should look after 90 seconds?

• 
• 
• 
• 

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5