EXCEL GLOBAL SCHOOL, Thiruvattar, Kanyakumari District
To Learn, To Serve, To Lead
II INTERIM EXAMINATION 2019 – 2020
Name
Roll No
PHYSICS
Date
DPR (5)
26
02
Unit (10)
Invigilator Name
2020
Paper 1, 2 & 3 (30)
Sign
Total (85)
Teacher’s Sign:
Grade
Time
50 min
Percentage
grade
Parent’s sign
Paper I – Multiple Choice Questions (10 marks)
1. Energy is stored in a battery and in
a box of matches. Which type of
energy is stored in each of them?
2. A gasoline-powered vehicle goes up
a hill from point X to point Y. What
energy transformation must occur
in the car’s engine?
A. Chemical energy into mechanical
energy
B. Electrical energy into chemical
energy
C. Heat energy into chemical
energy
D. Mechanical energy into nuclear
energy
5.
What do we call the graph which
represents energy?
A. Scatter Graph C. Sankey Diagram
B. Stinky Diagram D. Bar Chart
6. Where does most of the energy go
for this transformation?
3. Which of these resources will most
likely be depleted first?
A. Wind
C. Solar energy
B. Fossil fuels
D. Water
4. What type of wasted energy is
given off a light bulb?
A. Elastic
B. Heat
C. Light
D. Kinetic
A. heat
B. light
6
C. electrical
D. joules
7. This diagram shows the energy
transferred by an electric heater in
one second:
8.
What is an advantage to solar
energy?
A. it pollutes
B. it is gathered 24 hours a day
C. it works well no matter where you
are in the world
D. it is renewable
How much energy is wasted each
second?
A.12J
C.50J
B.38J
D. 88J
9. What law states that energy
cannot be created or destroyed but
can only be changed from one
form to another?
A. law of conservation of energy
B. law of conservation of matter
C. law of gravity
D. law of proportions
10. Energy...
A. is the ability to do work or cause a
change
B. is all the movement in the
universe
C. cannot be created or destroyed
D. all of the above
PAPER II [Structured Questions]
1. The unit that energy is measured in is called the joule. How many joules of energy are
needed to perform a given task?
A. How many joules would be used to raise?
i.
An object of weight 20N by 2 meters
[2]
ii.
An object of weight 30N by 3 meters
=_______________ joules
[2]
=_______________ joules
B. Athi weighs 200N and climbs the tree. The height of the tree is 5meters.
i.
How many joules of energy does he use climbing tree?
[2]
=_______________ joules
ii.
How many kilojoules of energy does he use climbing tree?
[1]
=_______________ KJ
2. BICYCLE DYNAMO
a. Explain how the bicycle dynamo works.
[2]
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b. Draw the energy transfer diagram featuring a dynamo.
[2]
PAPER III (Alternate to Practical)
1. Here is a Sankey diagram showing information about the energy transfers for the fan.
Kinetic Energy
……………… J
A. Use the amount of energies 100J, 30 J and 20 J to Complete the Sankey diagram to show
the amounts of sound and heat energy transferred.
[3]
B. State the principle of conservation of energy.
[2]
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2. Arrange the following items into two energy transfer diagrams in the space given
below.
[4]
 Strain energy
 Kinetic energy
 Bunsen burner
 Catapult
 Stored chemical energy
 Light energy and heat energy