Physics Year 12 Random Retrieval

This quiz contains all the questions in the Physics Year 12 section. The website will pick 10 questions at random.

1 / 10

What is a fair test?

A fair test is when only the independent variable has been allowed to affect the dependent variable.

A fair is when you repeat the experiment until you have concurrent results.

A fair test is when results are taken three times and an average is found.

2 / 10

Select the SI unit for Energy.

Js^-1

m kg s^-1

m²kg s^-2

m²kg s^-3

3 / 10

Physical Disability Rugby League (PDRL) is a format of rugby league for those with impairments. Anthony Seward (Warrington Wolves) has a mass of 70 kg and Sam Zeller (Leeds Rhinos) has a mass of 65 kg. Anthony is at rest and Sam runs towards him at a speed of 8 ms^-1. They move together in the same direction, calculate at what speed.

0 ms^-1. They do not move.

1.45 ms^-1

2.8 ms^-1

3.0 ms^-1

4 / 10

A flask of coffee is knocked horizontally from the roof of a car 1.45 m off the ground at 14 ms^-1. Calculate how long it takes to reach the ground. g_Earth = 9.81 ms^-2

0.10 s

0.21 s

0.30 s

0.54 s

5 / 10

Connell's chain is made from silver which has a resistivity of 1.59 x10^-7 Ω m at 20 °C. It has a diameter of 4mm and a resistance of 0.71 Ω. What is the area inside the entire necklace when shaped in a perfect circle?

182 cm²

250 cm²

254 cm²

267 cm²

6 / 10

The unit for resistance is Ohms, what is this in SI base units?

kg s^-2 A^-1

m^-2 kg^-1 s⁴ A²

m² kg s^-3 A^-1

m² kg s^-3 A^-2

7 / 10

A battery delivers 5.2 x10³ C of electric charge to a circuit in 12 minutes. Calculate the current.

0.14 A

7.22 A

3.74x10⁶ A

8 / 10

Which diagram represents a concave lens?

A

B

9 / 10

Identify the stationary wave pattern for a string at the fourth harmonic.

A

B

C

D

10 / 10

Soumya plays a note of wavelength 25 cm on her synthesiser. She knows the speed of sound is 340 ms^-1 in air. Calculate the frequency.

13.6 Hz

85 Hz

1360 Hz

8.5 kHz

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