Carib Quiz - Physics
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Physics
1. Question

A 10 V battery delivers a steady current of 2 A. How long will it be before 1.0 kJ of energy is supplied to the circuit?

2. Question

A loudspeaker emits a steady note.A girl sings a note which is of lower pitch but higher volume. The sound wave she is producing has:

3. Question

What would be the best materials to use for making the coil and the core of an electromagnet?

4. Question

A certain nucleus has 12 protons and 16 neutrons.Which one of the following statements about the nucleus is NOT true?

5. Question

The splitting of a beam of white light into the colours which make it up is called:

6. Question

Which one of the following would NOT give rise to a systematic error in an experiment?

7. Question

When we focus on a near object, the lens in our eye:

8. Question

A detector close to a sample of radioactive material records 76 counts per second (cps). Precisely 2 days later the count rate has fallen to 22 cps.The count rate due to background radiation, taken immediately before and after the experiment, averaged 4 cps. The half-life of the material is:

9. Question

A lens forms a real image of magnification ×3.Which one of the following statements is NOT true?

10. Question

In which one of the following four cases would the pressure be greatest?

11. Question

The method by which certain uranium and plutonium nuclei can release energy in a reactor is known as:

12. Question

Which one of these statements is true for ALL electromagnetic waves?

13. Question

The lowest and the highest frequencies a typical young person′s ear can detect are approximately:

14. Question

Which one of the following statements about diffraction is true?

15. Question

An electron, with its charge of 1.6 × 10-19 C, is moved from one place at +8 V to a different place which is at 0 V.The energy released will be:

16. Question

A dynamo connected to a circuit is being turned.Which one of the following would NOT generate a greater e.m.f.?

17. Question

In Fleming's Left Hand Rule describing the motor effect, the directions are:

18. Question

The air temperature on a particular day is 27 ℃. An air bubble trapped in a tube by a thread of liquid is able to expand freely if it is heated.At what temperature would you expect the volume of the air bubble to double?

19. Question

A spring is 100 mm long when unstretched. A 40 N load is hung from it, and its total length increases to 120 mm. A different load on the spring causes it to become 150 mm long. If the spring obeys Hooke′s Law, this second load is:

20. Question

Boiling and evaporation both involve a liquid turning into a vapour (i.e. a gas).The following statements relate to water.Which one is NOT true?

21. Question

The specific heat capacity of a particular liquid is 3000 J kg-1 K-1. A large beaker containing 2 kg of the liquid has to be warmed from 25 ℃ to 35 ℃. A 100 W heater is used. If all the thermal energy could be transferred to the liquid, how long would it take?

22. Question

A girl whose weight is 250 N walks up a slope 40 m long onto a platform 3 m high. Her gain in gravitational potential energy is:

23. Question

Which one of the following statements about ∝ particles is NOT true?

24. Question

Which one of the following is NOT a vector quantity?

25. Question

Dividing 9 × 10-2 by 3 × 10-8 gives:

26. Question

Which one of these four statements is NOT true?

27. Question

Two resistors, one of 4 Ω and one of 6 Ω, are connected in parallel.Their combined resistance is:

28. Question

The existence of a neutral particle named the neutron was first confirmed experimentally by:

29. Question

A ripple travels over the surface of some water. Its wavelength is 2 m, its amplitude is 0.1 m and its frequency is 0.5 Hz.The speed of the ripple is:

30. Question

The nucleus of a carbon atom has six protons and eight neutrons.Which one of the following describes it?

31. Question

A force of 100 N starts to act on a body of mass 20 kg which is initially at rest. After 10 s its velocity will be:

32. Question


The graph shows the results of an experiment to investigate
the relationship between the voltage placed across a light bulb
and the current which then flows through it.Which one of the
following statements is NOT true?

33. Question

The statements refer to a fuse. Which one is true?

34. Question

Which one of the following is NOT a magnetic material?

35. Question

You look through a microscope to view the Brownian motion of smoke in a container of air. Which one of the following statements is NOT true?

36. Question

Which one of the following statements about constructive interference is NOT true?

37. Question

A boy throws a cricket ball straight up in the air. At the very top of its flight:

38. Question

A current of 2 mA is flowing through a wire. How long will it take for 6 coulombs of charge to pass?

39. Question

The following statements refer to the laminated core of a transformer. Which one of them is NOT true?

40. Question

The units of specific latent heat are:

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