Key concepts in Physics - Science and Maths Tutor

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#1. Which one of the following is the correct conversion of 1 nano metre (nm) into metres?

0.000000001 m

0.000001 m

0.001 m

1,000,000 m

#2. What is the SI unit for frequency?

s

Hz

H

K

#3. Which one of the following is the correct conversion of 2 hours into seconds?

2 x 60 x 60 = 7200 s

2 x 60 = 120 s

2 x 6 x 6 = 72 s

2 x 6 x 60 = 720 s

#4. What is the SI unit for potential difference?

A

V

E

Pa

#5. Which one of the following is the correct conversion of 5 cm into metres?

500 m

0.5 m

0.05 m

50 m

#6. Which one of the following is the correct conversion of 2 Giga Watts (GW) into Watts?

0.002 W

2,000 W

2,000,000 W

2,000,000,000 W

#7. Which one of the following is the correct conversion of 6 micrometres (μm) into metres?

0.000006 m

0.006 m

6,000 m

6,000,000 m

#8. What is the SI unit for distance?

km

d

m

l

#9. Which is the correct SI unit for Forces?

N

J

Kg

T

#10. What is the SI unit for electric current?

A

V

E

W

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