15 questions
Which of the following statements about condensation and evaporation are correct?
A - Both processes involve a change in state.
B - Both processes do not occur at fixed temperatures.
C - One process involves heat gain while the other involves heat loss.
A and B only
A and C only
B and C only
A, B and C
Study the table.
Which of the following is a correct conclusion?
The boiling point of substance C is 60°C.
The melting point of substance B is 60°C.
Substance A has the highest freezing point.
Substance B has a lower boiling point than substance A.
In the four circuits, all the bulbs and batteries are new and identical.
Which of the following two bulbs have the same brightness?
A and B
A and D
B and C
C and D
A man used a hammer to drive a nail into a piece of wood.
Which factor will not affect how deep the nail goes into the wood?
mass of the nail
mass of the man
height the hammer was raised
friction between nail and wood
A boy gave a kick to a block of ice. The block of ice moved along the floor to G and then to W. It stopped at W.
Which of the following is correct?
1
2
3
4
The diagram shows five lamps connected to two batteries.
When one of the lamps is not working, only two lamps remain lit. Which lamp is not working?
A
B
C
D
The diagram shows a cylinder and a plunger. Ahmad filled the cylinder with 20 cm3 of water, leaving 10 cm3 of air.
What would Ahmad see after he pushed the plunger downwards as far as he could without any air or water escaping?
Which of the following diagrams correctly shows how trees play a part in the water cycle?
A block of wood slid down a slope after it was released at the top as shown in Diagram 1. The graph shows the amount of different types of energy of the block at point P.
The experiment was repeated with oil applied on the surface of the slope. Which graph correctly shows the amounts of different types of energy at P?
Toy blocks were held together by friction between the blocks.
Ramsy attached blocks Q and P to block L as shown in Diagram 1. When a third block R was added, blocks Rand Q fell to the ground as shown in Diagram 2.
Which one of the following is the reason why the two blocks fell?
The weight of R was greater than the weight of Q.
Friction between P and Q was less than the total weight of R and Q.
Friction between P and L was less than the total weight of R, Q and P.
The total weight of Rand Q was greater than the total weight of Q and P.
Asman has four different toy parachutes, A, B, C and D.
The details of the four toy parachutes are given in the table.
Asman predicts that the length of string of a toy parachute does not affect the time needed for it to fall to the ground.
Which pair of toy parachutes should he use to test his prediction?
A and B
A and D
B and C
C and D
Containers in set-ups A, B and C below are of the same size and thickness but made of different materials. The containers were filled with the same volume of water at 100 °C and left on a table.
Which graph correctly shows the temperature of water in the three set-ups over a period of time?
Minah used the set-up below to conduct an experiment.
She used a light sensor to measure the amount of light on the screen.
She varied the position of one of the items in the set-up and recorded her observations for each position as follows.
What change did Minah make?
torchlight was moved towards the object
object was moved towards the torchlight
screen was moved towards the torchlight
torchlight was moved away from the screen
Kumar hung three identical springs each attached to a block of equal mass from the ceiling. What would he see?
1
2
3
4
An insect is covered in a shell that supports its body and protects its organs. This shell is made from material C.
Which property of material C allows the shell to perform the functions described?
strength
flexibility
waterproof
ability to float