Common Entrance Physics – 30 Multiple choice questions

1. A student measured the temperature of some hot water every 60 seconds
The diagram above shows the cooling curve she produced from her results.
What was the temperature of the water at the beginning of the experiment?
 
 
 
 

2. A firework rocket is resting in its launcher at position 1.
After being lit the rocket climbs to position 3 (its highest point) from where it falls back to the earth, hitting the ground at position 5.

energy1In what form does the energy exist at position 1?
 
 
 
 

3. What formula is used to calculate volume?
 
 
 
 

4. The cubes below all have the same volume.
The mass of each block is shown inside each cube.

densit9Which substance has the highest density?
 
 
 
 

5. How many mm in a metre?
 
 
 
 

6. Pick the correct sentence from those given to best  describe the term below:

Amplitude
 
 
 
 

7. Which of the energy changes below represents that which takes place in an electric motor?
 
 
 
 

8. A block measures 10cm x 8cm x 5cm
You are told that the block is made out of iron which has a density of 7g/cm³

What is the mass in kg?
 
 
 
 

9. The circuit below shows 3 lamps (P, Q and R) and 4 ammeters (A1, A2, A3 and A4)
The lamps are all similar to each other.

ammetersA1 reads 0.3A.

Will the reading of A4 be more than 0.3A, less than 0.3Aequal to 0.3A or zero amps?
 
 
 
 

10. The legs of a chair each have an area of 20cm2 .

The chair has  4 legs and a mass of 4kg.

If the chair had thinner legs (the area of each leg was less) what effects would this have?
 
 
 
 

11. The diagram shows a distance time graph for a model car.
How fast was the car travelling during section A of the journey?
 
 
 
 

12. What type of object is the Sun
 
 
 
 

13. How many centimetres in a metre?
 
 
 
 

14. How far does sound travel in 1 second
 
 
 
 

15. What is the unit of Mass?
 
 
 
 

16. Which would be the best instrument to measure the volume of some water?
 
 
 
 

17. What needs to be done to increase the pitch of a guitar string?
 
 
 
 

18. Name an instrument for measuring the current in a circuit
 
 
 
 

19. Alice put four objects on to a tray and slowly tipped it up.
The pencil sharpener slid first. The matchbox slid next. Then the scissors. The rubber slid last. Which object had the most friction between it and the tray?
 
 
 
 

20. What is the unit of Weight?
 
 
 
 

21. circuit3If I unscrewed bulb B from its holder what would happen to the other bulbs?
 
 
 
 

22. Which of these substances aree electrical insulators?
 
 
 
 

23. Why is it preferable for ice skates to have a very thin edge?
 
 
 
 

24. If the North seeking pole of one magnet is brought near the south seeking pole of another magnet what will happen?
 
 
 

25. What formula is used to calculate area?
 
 
 
 

26. Pick the correct sentence from those given to best  describe the term below:

Volume
 
 
 
 

27. A firework rocket is resting in its launcher at position 1.
After being lit the rocket climbs to position 3 (its highest point) from where it falls back to the earth, hitting the ground at position 5.

energy1At postion 2 there is an energy change
Chemical energy

Energy A → Energy B → Energy C
What energy forms does the chemical energy change into?
(tick all that apply)
 
 
 
 

28. If you went to the moon what would happen to your mass?
 
 
 

29. What object is at the centre of our solar system
 
 
 
 

30. Which of the following metals are magnetic