Show:
Motion
Newton's Laws
Momentum
Energy
Misc.
100

What is Temperature?

The Temperature of an object is the measure of the average kinetic energy of the particles that make up that object. 

100

What is a coolant?

A coolant is a substance that can absorb a great amount of thermal energy with little change in temperature.

100

What color is Jonathan's hair?

So depending on the light it can be orange but sometimes when there is no light it is brown.


Nice 

100

What is Samantha shoe size?

Six

100
Light travels in a straight line at a constant speed of 300,000 km/s. What is light’s acceleration?
0 m/s
200

What is Thermal energy?

The Thermal energy of an object is the sum of the kinetic energy and potential energy of all of the particles that make up that object.

200

Thermal energy depends on what?

Temperature

200

What is the Specific Heat of water?

4200 degrees Celsius. 

200
What is the potential energy of a 70 kg freshman standing on the roof of a 30 m high building?
21,000 J
200
A 2 kg pumpkin is launched at 20 m/s and collides with a 20 kg scarecrow which is at rest. The collision breaks the head off of the body and sends both flying through the air. The pumpkin bounces back at a velocity of -5 m/s while scarecrow’s 15 kg body breaks off at a speed of 2 m/s. How fast is the separated head of the scarecrow moving?
4 m/s
300

What is Heat?

Heat is energy that is transferred between objects due to a temperature difference between those objects.

300

What is a Calorimeter?

A Calorimeter can be used to determine the specific heat of materials.  

300

Why does a cold pot of water can never heat a hot stove?

Warmer object always heat cooler objects, but the reverse never occurs.

300
A 1 kg flea is riding on the back of a 20 kg dog. The dog is running at 4 m/s. What is the kinetic energy of the flea and the dog?
168 J
300
An 80 kg physics teacher is standing on the edge of the roof to the gym which is 20 m high. He then jumps. At some point on the way down he has a gravitational potential energy of 12,000 J. What is his velocity at this point?
10 m/s
400

What is the unit measure for Temperature?

Kelvin (K)

400

What is Specific Heat?

The Specific Heat of a material is the amount of heat needed to raise the temperature of 1 kg of the material by 1 degrees Celsius. 


400

1 kelvin is the  _____  size as one degree Celsius.

same

400
A 45 kg freshman gets pushed off the gym which is 180 m high. How fast is he falling right before he hits the ground?
60 m/s
400
An astronaut (m = 60 kg) is at rest and stranded from his spaceship which is 30 meters away. His only hope to get back is to hold his breath and throw his 20 kg air tank in the opposite direction at -9 m/s to send him back towards his ship. How long will it take him to make it back to his ship?
10 sec
500

When is Betul's birthday?

Feb. 24

500

Why water is often used as a coolant?

Water is useful as a coolant because they can absorb thermal energy without a large change in temperature.


500

What happens when you put cold butter at room temperature     ?

The particles that make up the room temperature air have more kinetic energy than the particles that make up the cold butter .

500
A pink flamingo gets pushed from the top of a 245 m high cliff. If the flamingo doesn't fly, how fast will it be falling right before it hits the ground?
70 m/s
500
A 7 kg bike is riding along at 10 m/s when it then slows down to 6 m/s over 2 seconds. How much work was done during this time? (Hint: You need 4 equations to figure this one out)
-224 J (or 224 J)