Calculating ME & Thermo Check-In

Last updated 3 days ago

36 questions

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Last updated 3 days ago

36 questions

ME = PE + KE
Mechanical Energy = Potential Energy + Kinetic Energy

Mechanical Energy Remains Constant In The System!

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A skier (75 kg) is going down a ski slope. At 5 meters from the bottom, they have a velocity of 50 m/s. What is the Kinetic Energy at this height?

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Thermo Check-In
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Heat transfers from the __________ to the __________ . The ice cream molecules move __________while the sidewalk's molecules move __________ 

ME = PE + KE
Mechanical Energy = Potential Energy + Kinetic Energy

Mechanical Energy Remains Constant In The System!

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Thermo Check-In
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Energy does not flow between substances

From hot to cold

From low energy to high energy

From cold to hot

Molecules of the pan will decrease motion, molecules of the water will decrease motion.

Molecules of the pan will decrease motion, molecules of the water will increase motion.

Molecules of the pan will increase motion, molecules of the water will decrease motion.

Molecules of the pan will increase motion, molecules of the water will increase motion.

All particles are in random motion until they reach 0 F.

Only gas particles are in motion.

All particles are in random motion until they reach 0 K.

All particles in liquid and gases are in motion .

Both will be moving at the same rate

Particle A

Particle B

Direct

Inverse

No relationship

Liquid 

Solid

Gas

All are the same

Solid

All are the same

Gas

Liquid 

Heat transfers from the __________ to the __________ . The ice cream molecules move __________while the sidewalk's molecules move __________ 

Move the choices into the correct categories on the right.

Particle motion slows down

Higher Pressure

Particles collide less

Particles collide more

Lower pressure

Energy would move towards the object

Particle motion speeds up

Energy would move away from the object

Higher Temperature Objects

Lower Temperature Objects

The flow of energy is described best as

Energy does not flow between substances

From hot to cold

From low energy to high energy

From cold to hot

When a hot frying pan is placed in a sink of cold water, what will happen to the molecule’s motion?

Molecules of the pan will decrease motion, molecules of the water will decrease motion.

Molecules of the pan will decrease motion, molecules of the water will increase motion.

Molecules of the pan will increase motion, molecules of the water will decrease motion.

Molecules of the pan will increase motion, molecules of the water will increase motion.

What does Kinetic Molecular Theory mean?

All particles are in random motion until they reach 0 F.

Only gas particles are in motion.

All particles are in random motion until they reach 0 K.

All particles in liquid and gases are in motion .

Particle A is half the mass of Particle B. If they are held at the same temperature, which will be moving with more velocity?

Both will be moving at the same rate

Particle A

Particle B

How are temperature and velocity related?

Direct

Inverse

No relationship

Which state of matter has the most KE?

Liquid 

Solid

Gas

All are the same

Which state of matter has particles' with the highest velocity?

Solid

All are the same

Gas

Liquid 