The document is a Grade 9 physics practice paper consisting of various sections and questions related to topics such as motion, force, and measurements. It includes instructions on question formatting, various calculations and graph interpretations, alongside descriptive questions about physics principles. The paper is split into multiple sections with specific tasks related to core physics concepts, including Newton's laws and kinematics.

1. Page 1 of 5
PHYSICS
PRACTISE PAPER
GRADE:9 TIMES:2 hrs
MAX MARKS: 80
INSTRUCTIONS
 You will not be allowed to write during the first 15 minutes. This time is to be spent in
reading the question paper. The time given at the head of the paper is the time allowed for
writing the answers.This paper consists of 5 printed sides.
 Graphs should be drawn with prncil only.Marks will be deducted for not doing so.
 Questions are to be done in order.Marks will be deducted for not doing so
SECTION I
Q 1
1. 1nm= ___m.2nm=____km
2. Rest and motion are relative terms.Explain.
3. Define linear momentum.State it’s SI unit.
4. What is the function of the Outside and Inside jaws?
5. Name 2 parts of a Screw gauge
Q2
1. Calculate the force applied by the body to a car at rest which has a mass of 4g and attains
a velocity of 20 m/s.
2. Draw a v-t graph of an object moving with uniform velocity.
3. Draw a distance time graph for a stationery object
4. Define Force and it’s SI unit.
5. State Newton’s First Law
Q3
1. Explain the errors of a Vernier caliper.
2. Explain the backlash error of a Screw gauge
3. There are 10 divisions between 0-5cm.Calculate the Least count
4. State Newton’s 2nd Law
5. State Newton’s 3rd law

2. Page 2 of 5
Q 4
1. Give reasons for the following
i) A vertical line in a v-t or distance time graph is not possible
ii) When a car breaks you move forward
iii) A cricketer moves his hand backward and then catches the ball
iv) A glass dropped on floor breaks but when it is dropped in sand it does not break.
v) Car on a cruise control is an example of uniform velocity.
SECTION II
(ATTEMPT ANY 4 QUESTIONS)
Q 5
1. Derive the Second law of motion graphically [4]
2. The pitch of the screw is 1mm and it’s least count is 0.01 mm.The pitch scale reading
shows 7 divisions and the 7th division of Circular Scale coincides with the base
line.Calculate
i)Total reading ii)Corrected reading if it has a positive zero error [3]
3. Prove v = u + at graphically. [3]
Q 6
1. Look at the displacement time graph and state which graph
[2]
a) Shows that the object is at rest
b) Acceleration is 0
c) Body is moving at uniform velocity
d) Body coming to starting point

3. Page 3 of 5
2. Calculate the DISTANCE in time interval(in s) [2]
a) 0-3
b) 3-5
c) 5-7
d) 3-10
3. Calculate the ACCELERATION in time interval(in s) [2]
a) 0-3
b) 3-5
c) 5-7
d) 7-10
4. At which time interval does the graph show that the body is decelerating ? [1]
5. At which time interval does the graph show that the body is moving at a uniform
velocity? [1]
6. Draw a v-t and d-t graph to depict that an object is at rest [1]
7. At which time intervals is the body accelerating? [1]
Q 7

4. Page 4 of 5
1. In the above picture both the boy and girl have same mass.If the boy moves at highes
velocity what two conclusions can u deduce? [2]
2. How can you increase the acceleration? [1]
3. If the boy stands on the swing how is the time period affected?Explain. [2]
4. A stone is dropped from the top of the building and reches the ground in 2 s.Calculate the
height of the building and the force applied if it weighed 50N. [4]
5. Define Pitch of the screw. [1]
Q 8
1. Draw a velocity-time graph for a ball that has been thrown straight up into the air and
returns to its original position. (neglect air friction) [2]
2. State any 2 parts of a Screw gauge and mention it’s function. [2]
3. Compare the length of a seconds pendulum and a pendulum who has time period of 4 s[2]
4. Calculate the frequency and the length of a seconds pendulum [2]
5. Why does a pendulum clock move slowly in summer and fast in winter. [2]
Q 9
1. How will the time period of a pendulum be affected if it was taken to the moon.?[1]
2. Which pendulum A or B will have more oscillations in 5 seconds(Length of A is 5m and
B is 2m) [1]
3. Calculate the Time period of a pendllum of length 2.56m in moon.(g = 1.6m/s2)Take pi
as 3.14 [3]
4. Calculate the Force applied on a body of 5kg due to acceleration due to gravity. [1]
A stone is thrown vertically upwards. It decelerates at a rate of 9.8m/s It reaches a
greatest height of 16.53m. Calculate its initial speed. [2]
5. A rubber toy is thrown to a maximum height of 2.51m. Find its initial velocity
[2]
Q 10
1.A diver plunges head first into a diving pool while travelling at 28.2 m s–1. Upon entering
the water, the diver stops within a distance of 4.00 m from the diving board. Consider the
diver to be a single point located at her centre of mass and assume her acceleration
through the water to be uniform.
a Calculate the average acceleration of the diver as she travels through the water.
b How long does the diver take to come to a stop?
c What is the speed of the diver after she has dived for 2.00 m. [2]
2.When does a car have the greatest ability to accelerate and gain speed: when it is moving
slowly or when it is travelling fast? Explain. [1 ½ ]

5. Page 5 of 5
3.A stone is dropped vertically into a lake. Which one of the following statements best
describes the motion of the stone at the instant it enters the water?
A Its velocity and acceleration are both downwards.
B It has an upwards velocity and a downwards acceleration.
C Its velocity and acceleration are both upwards.
D It has a downwards velocity and an upwards acceleration. [ ½ ]
4. Observe the diagram of a Vernier Calliper and Answer the following questions
i) Label parts 1,2,5 and 7. [2]
ii) State the function of 1 and 2 [2]
iii) State function of 7 and 5 . [2]