WorksheetsWeather & Water: Investigation 3
Total questions: 26
Worksheet time: 13mins
How do you calculate density?
volume divided by mass
mass divided by volume
volume multiplied by mass
Calculate the density of a solution with a volume of 125mL and a mass of 75g.
1.67 g/cm cubed
0.68 g/cm cubed
0.6 g/cm cubed
1.6 g/cm cubed
True/False
When thermal energy is added to a fluid there are fewer collisions among the particles.
True
False
True/False
When thermal energy is added to a fluid the motion of the particles speeds up.
True
False
How does the density of water change when it is heated?
It is less dense.
It is more dense.
The density does not change.
If you had three liquids: clear room temperature water, pink hot water and green cold water, which liquid would you expect to layer on the top?
clear water
pink water
green water
Hot water is like a
low-pressure area.
high-pressure area.
Cold water is like a
low-pressure area
high-pressure area
What is one way to change the density of a liquid.
change the color of the liquid
add more liquid
change the temperature of the liquid.
If you put your hand above a candle flame and feel the warmth, without touching the flame, the warmth you feel is evidence of energy transfer by
radiation and convection
radiation only
conduction and convection
radiation and conduction
Do the particles in warm water have more energy than the particles in cold water?
Yes
No
You open a window and let cool air into a warm classroom, and then close the window five minutes later. The temperature is measured and it is 7 degrees colder than it was before you opened the windows. How can you explain what happened?
The air particles mixed so now ALL the air particles have LESS kinetic energy.
The warm air particles in the room transferred kinetic energy to the cold air particles entering the room.
The cold outside air particles added kinetic energy to the warm air particles in the room.
True/False
When thermal energy is added to a fluid, the particles increase in size.
True
False
Hot water is ______________ cold water.
less dense than
more dense than
the same density as
Which image shows what a convection current could look like?
