Team 1
0
Team 2
0
Teams
Name
Score
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Loading
×
trap
No points!
Oops!
×
fairy
Take points!
5
10
15
20
25
×
rocket
Go to first place!
Okay!
×
baam
Lose 20 points!
Oops!
15
×
How much torque is produced depends on 3 things, what are they?
Air density, wind speed and the length of the rotor blades
Oops!
Check
Okay!
Check
20
×
What is torque?
The rotational energy that is converted by the rotor blades of the windmill from the wind's energy.
Oops!
Check
Okay!
Check
20
×
What is a renewable energy source? Give 2 examples.
It's a source of energy that never runs out. Eg. wind and solar energy...
Oops!
Check
Okay!
Check
20
×
How does Earth's rotation help to create wind?
The land and ocean move and drag the air around while the Earth is rotating.
Oops!
Check
Okay!
Check
10
×
Which set of people used to use wind to power their sailboats along the river Nile?
Ancient Egyptians
Oops!
Check
Okay!
Check
×
seesaw
Swap points!
Oops!
×
seesaw
Swap points!
Okay!
×
shark
Other team loses 10 points!
Okay!
×
lifesaver
Give 25 points!
Oops!
10
×
What were the 2 main uses of windmills in the middle east regions 1500 years ago?
To grind grain and draw water
Oops!
Check
Okay!
Check
5
×
Where were the first windmills used?
Persia
Oops!
Check
Okay!
Check
15
×
Why is a windmill called by that name?
It uses the power of wind when milling grains.
Oops!
Check
Okay!
Check
×
thief
Give points!
5
10
15
20
25
×
magnet
Take 20 points!
Okay!
×
rocket
Go to first place!
Okay!
×
lifesaver
Give 25 points!
Oops!
15
×
What is wind?
The movement of air
Oops!
Check
Okay!
Check
5
×
What is the main driver of wind?
The sun's warmth
Oops!
Check
Okay!
Check
25
×
How does the sun help to create wind?
As sunlight hits the Earth, it warms the air. The warm air is lighter so it rises while the cool air sinks. This movement creates wind.
Oops!
Check
Okay!
Check
10
×
What is the process called whereby grains are grinded into powder form?
Milling
Oops!
Check
Okay!
Check
15
×
What is a wind turbine used for?
A wind turbine turns wind energy into electricity.
Oops!
Check
Okay!
Check
×
Restart
Review
Join for Free
;
Your experience on this site will be improved by allowing cookies.
Allow cookies