Energy
Match the term and the definition: flow of charged particles (ions or electrons)
Electrical energy
A simple machine that reduces the amount of force it takes to move an object must ___________
increase the distance the object travels
On this scale, water freezes at 32 degrees and boils at 212 degrees
Fahrenheit
If two objects have different temperatures, heat will flow from the warmer object to the cooler one UNTIL ________
they both have an equal temperatures
Match the law: two objects exchange heat until their temperatures are equal
2nd
Identify the type of energy: An atom is split and sends out particles that split the nuclei of other atoms.
Nuclear energy
Which is responsible for slowing down a skydiver after they open their parachute?
Drag/ air resistance
On this scale, water freezes at 0 degrees and boils at 100 degrees
Celsius
Match the term and description: SI temperature scale, used by scientists in research but not used by any countries for everyday measurements.
Kelvin
Match the law:
•if the cake is the same temperature as the air in the oven,
•AND the pan is the same temperature as the air in the oven,
• THEN the cake and the pan are the same temperature as each other
0th
Match the term and the definition: energy of electromagnetic and gravitational radiation
Radiant energy
What is the number of waves that pass a point in one second?
Frequency
On this scale, water freezes at 273.1 degrees and boils at 373.1 degrees
Kelvin
When a popsicle melts, the particles in the popsicle _____.
gain thermal energy
speed up
spread apart
Match the law and the description: In a closed system the change in internal energy of the system is equal to the difference between the heat supplied to the system and the work done by the system on its surroundings.
1st
Match the term and the definition: Potential energy stored in the bonds that connect atoms with other atoms and molecules with other molecules
Chemical
What is the formula for inelastic collisions?
m₁v₁ + m₂v₂ = (m₁+m₂)v₂'
Match the term and description: Imperial temperature scale, used by a few countries including the United States, Belize, Palau, the Bahamas and the Cayman Islands.
Fahrenheit
Which of the following things has the most thermal energy?
A) The ocean
B) A camp fire
C) A hot oven
D) A hot water bottle
Ocean
Match the law: energy always tends to get more spread out over time
2nd
Match the term and the definition: Kinetic energy of atoms within a substance
thermal energy
How does entropy tend to change over time?
tends to increase
Which temperature scale cannot go negative?
Kelvin
If 25 g of hot water are added to 35 g of cold water, the heat lost by the hot water is _____ the
heat gained by the cold water.
equal to
Match the thermodynamics law and the description: Energy can neither be created nor destroyed. It can only change forms. In any process, the total energy of the universe remains the same.
1st