Energy Unit Test Question Preview (ID: 62314)
Unit 2 Review.
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Beaker 1 has 100 ml of water and a temperature of 80 degrees Celsius. Beaker 2 has 50 ml of water and a temperature of 80 degrees Celsius. Which of the following statements is true?
a) The water in beaker 2 has a greater temperature than the water in beaker 1.
b) The water in beaker 1 and the water in beaker 2 have the same temperature.
c) The water in beaker 1 has a greater temperature.
d) The water in beaker 2 has a greater volume.
At the top of a roller coaster, the cart has the greatest potential energy. What happens to the potential energy of the cart as it rolls down the slope?
a) It is converted to potential energy.
b) It is converted to kinetic energy
c) It is destroyed
d) Gravitational energy increases
The greater the mass of an object.....
a) ...the greater the kinetic energy it has.
b) ...the less kinetic energy it has.
c) ...the greater speed it will have
d) ....the less thermal energy it will have.
How many calories are needed to raise the temperature of 1 gram of water by 10 degrees Celsius?
a) o.1
b) 1
c) 10
d) 100
What causes ice to melt?
a) The transfer of thermal energy to the ice.
b) The transfer of thermal energy from the ice.
c) Energy cause chemical bonds to break.
d) Heat makes the molecule expand.
Which is true about colder particles in a gas?
a) They have less energy
b) They move faster.
c) They move more freely.
d) They only vibrate.
What does a thermometer measure?
a) temperature
b) volume
c) mass
d) density
Which is not a type of energy?
a) Magnetic
b) Electromagnetic
c) Mechanical
d) Sound
At what temperature does water boil in degrees Celsius?
a) 100
b) 273
c) 325
d) 0
How far is 63 degrees Celsius from the freezing point of water?
a) 63 degrees Celsius
b) 27 degrees Celsius
c) 36 degrees Celsius
d) 100 degrees Celsius
What type of heat transfer happens when a spoon is heated from sitting in a cup of hot coffee?
a) conduction
b) convection
c) radiation
d) transmutation
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