Science Exercises For PMR
5 Questions
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Answer all the 40 questions and choose the best answer.
Questions and Answers
- 1.The following are the steps to use a Bunsen burner. J - Turn on the glass slowly K - Hold a lighted match or wooden splinter near the mouth of the barrel. L - Close the air hole completely by turning the collar. M - When the flame is seen, slowly open the air hole by turning the collar.
- A.
J, L, M, K
- B.
L, K, J, M
- C.
K, J, L, M
- D.
M, L, K, J
- 2.When two objects of different temperatures are brought together,
- A.
The heat in both objects increase.
- B.
Heat is transfered from the warmer object to the cooler object.
- C.
Both objects become cooler.
- D.
The temperature of both objects remains the same.
- 3.Given the density of iron is 6 000kg m-3 , calculate the mass of an iron box measuring 10m x 2m x 2m.
- A.
8 000kg
- B.
16 000kg
- C.
32 000kg
- D.
240 000kg
- 4.Which of the following is an example of unicellular organism?
- A.
Mushroom
- B.
Paramecium
- C.
Spirogyra
- D.
Mucor
- 5.Which of the following statements are incorrect?
- A.
Heat is how hot an object is
- B.
Heat is measured in joules
- C.
Heat is an energy
- D.
Heat can be transferred
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