7.MS-PS3-4 / 3-6 Question Preview (ID: 59687)


7.MS-PS3-4 / 3-6. TEACHERS: click here for quick copy question ID numbers.

Why does warm air rise?
a) because of conduction
b) because of radiation
c) because of thermal equilibrium
d) because of convection

Which statement does NOT explain why the red liquid in a thermometer goes up when placed in hot water??
a) thermal expansion
b) the particles in the red liquid started moving faster
c) the particles in the red liquid got closer together
d) the water particles transferred energy to the red liquid particles

Which was does thermal energy naturally always move?
a) from the warmer substance to the cooler substance
b) from the cooler substance to the warmer substance
c) from where there is less energy to where there is more energy
d) from where there is no energy to where there is some energy

Why does an ice cube feel cold in your hand?
a) thermal energy flows from your hand into the ice cube
b) cold energy flows from the ice cube into your hand
c) your hand acts as an insulator
d) the ice acts as an insulator

Which is NOT an example of thermal expansion?
a) a balloon inflating with hot air
b) a balloon being filled with helium
c) the liquid inside a thermometer rising
d) a window sticking more in the summer than in the winter

Which of the following statements is NOT true about absolute zero?
a) it is the coldest temperature possible
b) all particle movement stops
c) it can be reached by supercooling a substance
d) it has never actually been reached

Being warmed by a fire is an example of ______
a) conduction
b) convection
c) absolute zero
d) radiation

Touching a hot pot is an example of _____
a) conduction
b) convection
c) radiation
d) an insulator

What can be used to measure the average kinetic energy in a substance?
a) a hot plate
b) a thermometer
c) a scale
d) your hand

If two objects are different temperatures remain in contact with each other, what happens over time?
a) one will always be warmer than the other
b) they will become the same temperature
c) the temperatures will not change
d) it depends on the starting temperatures of both objects

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