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Q 1/17
Score 0
Which two quantities do you need to measure to find the density of a solid or liquid?
60
weight and volume
volume and surface area
mass and surface area
mass and volume
Q 2/17
Score 0
What happens to the particles in a substance if its temperature is increased?
60
they move closer together and the energy in their mechanical energy store increases
they move slower and the energy in their chemical energy store increases
they move faster and the energy in their kinetic energy store increases
they move faster and the energy in their chemical energy store increases
17 questions
Q.
Which two quantities do you need to measure to find the density of a solid or liquid?
1
60 sec
Q.
What happens to the particles in a substance if its temperature is increased?
2
60 sec
Q.
Changes of state are physical changes.
Which of these statements is NOT TRUE of physical changes?
3
60 sec
Q.
Why is the mass of a substance conserved when it changes state?
4
60 sec
Q.
What term describes the total kinetic energy and potential energy of all the particles in the substance?
5
60 sec
Q.
Why does a graph showing the change in temperature as a substance cools have a flat section when the substance is changing state?
6
60 sec
Q.
What is the name given to the energy transferred when a substance changes state?
7
60 sec
Q.
What term describes the energy required to change the state of one kilogram of a substance with no change in temperature?
8
30 sec
Q.
What term describes the energy required to change one kilogram of a substance from solid to liquid at its melting point, without changing its temperature?
9
60 sec
Q.
What term describes the energy required to change one kilogram of a substance from liquid to vapour at its boiling point, without changing its temperature?
10
60 sec
Q.
On a graph of temperature against time for a substance being heated up or cooled down, what do the flat (horizontal) sections show?
11
60 sec
Q.
What property of a gas is related to the average kinetic energy of its particles?
12
30 sec
Q.
What causes the pressure of a gas on a surface?
13
60 sec
Q.
What happens to the pressure of a gas in a sealed container if its temperature is increased? Increases/decreases?
14
60 sec
Q.
The pressure of a gas in a sealed container increases if its temperature is increased. Which of these is NOT a reason why this occurs?
15
60 sec
Q.
What happens to the temperature of a gas when it is compressed quickly? Increases/decreases?
16
60 sec
Q.
What happens to the pressure of a fixed mass of gas kept at constant temperature when the volume is increased? Increases/decreases?
