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Physics 1B EL Flashcards | StudBud
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Physics 1B EL
Physics 1B EL
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Questions
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Answers
1
Which is the most important safety precaution to take in this experiment?
Wear googles
Tie hair back
Hold radioactive source with tongs
Wear a lab coat
2
Why is an x-ray dangerous?
It can make you move
It can decrease your temperature
It can wake you up
It can kill cells in your body
3
Charge of proton?
6
0
+1
-1
4
Cancer can be caused by which EM wave?
Infrared radiation
Visible light
Ultraviolet radiation
Microwaves
5
Which type of wave is used in TV remotes?
Radio
Infrared
X-ray
Gamma
6
Which type of EM wave is used in an airport scanner?
Gamma
Infrared
X-ray
Radio
7
A wave has a wavelength of 2m and a freq of 4 hertz. Calculate the speed of the wave. Wave speed = Freq x wavelength
2m/s
8m/s
8
What is the half-life of a radioactive source?
Time taken for the activity to halve
Time taken for the activity to decrease
Time taken for the activity to triple
Time taken for the activity to double
9
What is the atomic mass of the atom? HINT: Number of particles in the nucleus!
5
12
18
6
10
What colour are the electrons in the diagram?
Green
Blue
Yellow
Red
11
Which type of EM wave is used in cooking food?
Microwave
Infrared
Gamma
Ultraviolet
12
Which letters shows the wavelength?
A
C
D
B
13
What is the centre of the atom called?
Electrons
Neutrons
Nucleus
Protons
14
Which letters shows the amplitude?
D
C
B
A
15
Count the number of neutrons in the diagram
5
18
6
12
16
Which electromagnetic wave has the highest energy?
X-ray
Radio
Infrared
Gamma
17
Which type of EM wave is used in transmitting aerial?
X-ray
Infrared
Radio
Gamma
