Friction

Sibel picks up a book from her desk and hands it to her teacher. Her teacher sets the book down and slides it across a table. Which action produces the most heat?

• sliding the book across a table

• handing the book to his teacher

• setting the book down on a table

• picking the book up from his desk

Tags

NGSS.MS-PS2-1

NGSS.MS-PS3-1

NGSS.MS-PS3-5

  Which action will produce the most heat in a ball?

• catching a ball

• bouncing a ball

• rolling a ball on the floor

• rubbing a ball on the carpet

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

When your hands feel cold, it can help to rub them together very quickly. This can make your hands feel warm. Why does rubbing your hands together make them warm?

• Rubbing your hands together can cause a fire that produces heat.

• Moving your body can cause your heart rate to speed up and warms the blood

• Rubbing your hands together causes friction which can produce heat.

• Rubbing your hands together causes energy which produces heat.

Tags

NGSS.MS-PS1-4

Lydia is rubbing her bare feet back and forth very quickly on the carpet. What will happen to the temperature of the carpet as Lydia does this?

• get cooler

• get drier

• get warmer

• get softer

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Nico and Titus cut two squares of wool fabric. The boys rub their pieces of fabric together for 30 seconds. They then place a thermometer between their two pieces of fabric and measure the temperature for 30 seconds. Their results are recorded below.

What is the best explanation for the change in temperature?

• the time of year

• the temperature of the classroom

• the amount of light in the classroom

• the friction caused by rubbing the fabric together

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

Two objects will create some heat if what is true?

• The objects are far apart.

• The objects rub against each other.

• The objects are both very heavy.

• The objects are made of different materials.

Alexa starts doing her homework. She takes a drink of water and opens her notebook. She sees she has made a mistake and erases it with her eraser. Which object produces heat when she uses it?

• cup

• book

• eraser

• water

Tags

NGSS.4-PS3-2

Makaylah is watching a movie with her parents. In the movie there is a car chase. She notices the tires on the car are smoking. What best explains why the tires are smoking?

• They are filled with air.

• They are very smooth.

• They moved in a circle.

• They rubbed against the road.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-5

Which action during a baseball game would produce the most heat?

• A bat hits the baseball.

• An outfielder catches a fly ball.

• Two players high-five each other.

• A runner slides into second base.

Tags

NGSS.MS-PS3-5

Claudio grew corn seedlings. They began growing after 4 days. The graph of the growth is shown below.

Based on the graph, how often did Claudio measure the height of the seedlings?

 

• every week once the seeds began growing

• every two days after Claudio planted the seeds

• every day once the seeds began growing

• every day after Claudio planted the seeds

Tags

NGSS.MS-LS1-5