8.1 Lesson 9 QUIZ

What is friction?

• A force that resists motion between surfaces in contact

• A force that transfers energy between objects and particles in the air

• A force that pushes objects in the direction of their motion

Which force is responsible for making it harder to slide on a carpet compared to a smooth floor?

• Friction

• Air resistance

• Gravity

• Magnetism

What is air resistance?

• A force that pushes objects in the direction of their motion

• A force that resists motion between surfaces in contact

• A force that slows down objects moving through the air

• A force that increases the temperature of objects

What happens when objects slide over each other?

• Energy is transferred, resulting in a change in shape

• Energy is transferred, resulting in a temperature change

• Energy is transferred, resulting in a change in color

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is the role of friction and air resistance when objects collide?

• They increase the speed of the objects

• They decrease the speed of the objects

• They change the direction of the objects

• They have no effect on the speed of the objects

Tags

NGSS.MS-PS3-5

What is the effect of friction and air resistance on the temperature of objects?

• They change the temperature of objects

• They have no effect on the temperature of objects

• They change the color of objects

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NGSS.MS-PS3-4

What is the result of collisions between objects and particles in the air?

• Energy is transferred and changes form

• Energy is made

• Energy is destroyed

• Energy is created

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What is the role of particles in the air in energy transfer?

• They absorb energy

• They have no role in energy transfer

• They create energy

• They create contact and energy is transferred.

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

How do contact forces, like friction and air resistance, cause energy to be transferred?

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NGSS.MS-PS3-5