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Card 6

Front

What is the approximate size of a helium atom?

Back

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Card 7

Front

What is the difference between a helium atom and an alpha particle?

Back

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Card 8

Front

Why do scientists think that helium should not be used to inflate party balloons?

Back

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Card 9

Front

What are 2 safety precautions to take when taking part in an an experiment?

Back

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Card 10

Front

A car manufacturer tests different heating elements by measuring how long it takes ice to melt. During the test some variables must be controlled. What are 2 control variables in the car manufacturers test?

Back

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Card 11

Front

Some of the energy supplied a car heater causes the ice to melt without the temperature of the ice increasing. What is the name of the energy supplied by the heater?

Back

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Card 12

Front

If the resistance of the variable resistor is increased. What effect will this have on the lamp?

Back

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Card 13

Front

What is the equation to calculate the efficiency?

Back

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Card 14

Front

What is the equation that links current, potential difference and resistance?

Back

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Card 15

Front

What is the equation that links kinetic energy, mass and speed?

Back

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