This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
This document has 16 pages. Blank pages are indicated.
PHYSICS 0625/21 Paper 2 Multiple Choice (Extended) October/November 2020
45 minutes You must answer on the multiple choice answer sheet. You will need: Multiple choice answer sheet Soft clean eraser Soft pencil (type B or HB is recommended)
INSTRUCTIONS There are forty questions on this paper. Answer all questions. For each question there are four possible answers A, B, C and D. Choose the one you consider correct
and record your choice in soft pencil on the multiple choice answer sheet. Follow the instructions on the multiple choice answer sheet. Write in soft pencil. Write your name, centre number and candidate number on the multiple choice answer sheet in the
spaces provided unless this has been done for you. Do not use correction fluid. Do not write on any bar codes. You may use a calculator. Take the weight of 1.0 kg to be 10 N (acceleration of free fall = 10 m / s2). INFORMATION The total mark for this paper is 40. Each correct answer will score one mark. A mark will not be deducted for a wrong answer. Any rough working should be done on this question paper.
1 For which one of the following measurements would a micrometer screw gauge be most suitable?
A length of this page
B length of a pencil
C diameter of a wire
D diameter of an atom 2 The speed–time graph represents a journey.
speed
time0
0
X Y
How does the graph show that the distance travelled in section X of the journey is greater than the distance travelled in section Y?
A The area below section X of the graph is greater than the area below section Y.
B The gradient of section X of the graph is greater than the gradient of section Y.
C The speed at the end of section X of the journey is greater than the speed at the end of section Y.
D The time for section X of the journey is greater than the time for section Y. 3 A car is travelling at a velocity of 2.0 m / s. It accelerates at a constant 0.20 m / s2 for 2.5 minutes.
What is the final velocity of the car?
A 2.5 m / s B 5.2 m / s C 30 m / s D 32 m / s 4 Which quantity is weight an example of?
5 A sphere P, made of steel, has a weight of 10 N on Earth.
Another sphere Q, also made of steel, has a weight of 10 N on Mars.
The gravitational field strength on Earth is greater than the gravitational field strength on Mars.
Which statement is correct?
A The mass of sphere P is the same as the mass of sphere Q.
B The mass of sphere P is less than the mass of sphere Q.
C On Mars, the weight of sphere P is more than 10 N.
D On Earth, the weight of sphere Q is less than 10 N. 6 A metal ball is attached to a cork and is lowered into a measuring cylinder, pulling the cork into
the water, as shown.
48 cm3
water
ball and corkabove the water
ball fully submergedbut cork above the water
both ball and corkfully submerged
ball
cork
56 cm3
80 cm3
The mass of the cork is 4.8 g.
What is the density of the cork?
A 0.15 g / cm3 B 0.20 g / cm3 C 0.60 g / cm3 D 5.0 g / cm3
17 The specific heat capacity of solid P is greater than that of solid Q.
What does this statement mean?
A Less energy is needed to raise the temperature by 1 C of unit mass of solid P than unit mass of solid Q.
B Less energy is needed to melt unit mass of solid P than unit mass of solid Q.
C More energy is needed to raise the temperature by 1 C of unit mass of solid P than unit mass of solid Q.
D More energy is needed to melt unit mass of solid P than unit mass of solid Q. 18 A student placed a number of ice cubes in a container with a hole in the base. He left them to
melt so that the water dripped into a beaker placed on a balance. The student recorded the initial mass of the beaker and the final mass of the beaker and water after five minutes.
0.05 kg
before
beaker
balance
ice in a containerwith a holein the base
0.16 kg
after
The specific latent heat of fusion for water is 334 J / g.
How much energy was absorbed from the surroundings in order to melt the ice?