What type of waves are used to see the bones inside a patient?
X-ray, Transverse
Oops!
Check
Okay!
Check
seesaw
Swap points!
Oops!
rocket
Go to first place!
Okay!
shark
Other team loses 25 points!
Okay!
lifesaver
Give 10 points!
Oops!
15
When a wave reflects from a surface, what is the link between the angle of incidence and the angle of reflection?
Both angles are the same
Oops!
Check
Okay!
Check
15
Which type of wave can travel through a vacuum?
Transverse
Oops!
Check
Okay!
Check
15
Define the frequency of a wave
The number of complete waves which pass a point every second.
Oops!
Check
Okay!
Check
15
If the angle of incidence of light hitting a mirror is 43o, what will be the angle of reflection?
43o
Oops!
Check
Okay!
Check
eraser
Reset score!
Oops!
shark
Other team loses 25 points!
Okay!
rocket
Go to first place!
Okay!
lifesaver
Give 25 points!
Oops!
15
What is is called when sunlight refracts through water droplets and is dispersed into a spectrum?
A rainbow
Oops!
Check
Okay!
Check
15
We orbit the Sun at a distance of about 150 million km. Light moves at 300,000 kilometers/second. How long does it take for light to reach the Earth from the sun.
500s or 8mins 20s
Oops!
Check
Okay!
Check
15
When measuring the angle of incidence and refraction, how and where should you draw the normal line?
At the point where the wave crosses the boundary, at 90o to the boundary.
Oops!
Check
Okay!
Check
thief
Give points!
5
10
15
20
25
shark
Other team loses 10 points!
Okay!
fairy
Take points!
5
10
15
20
25
thief
Give points!
5
10
15
20
25
15
Can sound travel through space (a vacuum)?
No
Oops!
Check
Okay!
Check
15
Why might a hospital worker wear a dosimeter at work?
If they work with ionising radiation, the dosimeter monitors the dose of radiation they receive.
Oops!
Check
Okay!
Check
15
How can you use a strobe light to measure the frequency of a wave on a string?
Set the strobe frequency so that the wave on the string appears to be still. The frequency of the strobe will now match the frequency of the wave.
Oops!
Check
Okay!
Check
15
When measuring something small, but that repeats many times (such as the wavelength of a water wave), how can you increase the accuracy of your measurement?
Measure multiple and then divide by the number you measured (e.g. measure 10 wavelengths and then divide by 10)