Revision 1,class 6, First term

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Term 1 Mock Paper - Class 6 Science

📘 Term 1 Revision Paper – Physics (Class 6)



Section A – 

Q1. Choose the correct answer:

1. A thread is wound 10 times around a measuring scale. The length of the wound portion is 1 cm. The diameter of the thread is:

Answer: 0.1 cm

2. Which of the following is the smallest indivisible particle of matter?

Answer: Atom

3. The amount of surface occupied by an object is its:

Answer: Area

4. An irregular surface will have:

Answer: More friction than a smooth surface

5. Which expression is true?

Answer: 1 m = 10  dm

6. Cu is the chemical symbol for:

Answer: Copper

7. Magnetic force is an example of:

Answer: Non-contact force

8. Which of these is a contact force?

Answer: Muscular force

9. ______ is the measure of hotness or coldness of a substance.

Answer: Temperature

10. The force of attraction between the particles of gases is:

Answer: Weakest

11. Molecules in solids can:

Answer: Vibrate about their fixed positions

12. 1 quintal is equal to:

Answer: 100 kg

13. Which of the following is not an element?

Answer: Water

14. The SI unit of temperature is:

Answer: kelvin

15. The type of friction in the moving wheels of a cart is:

Answer: Rolling friction

Q2. Name the following:

a) An instrument used to measure human body temperature.

Answer: Clinical thermometer

b) A push or pull that acts on a body.

Answer: Force

c) The error caused due to incorrect positioning of the eye.

Answer: Parallax error

d) The type of force between two bodies not in contact.

Answer: Non-contact force

Q3. True or False:

a) An element is a simple type of matter.

Answer: True

b) Force can bring a body to rest.

Answer: True

c) Matter is anything that occupies space and has mass.

Answer: True

d) Polishing a surface increases friction.

Answer: False

Q4. Match the following:

(Match Column A with Column B)

  • Gravitational force → The force that attracts a body towards the Earth
  • Friction → Increases friction for better grip
  • Volume → The amount of space a body occupies
  • Ruler → Used to measure length
  • Element Carbon → Symbol C
  • Spring balance → Device to measure force
  • Heat → A form of energy
  • Mercury → Liquid in thermometer
  • Electrostatic force → Non-contact force
  • Solid → Definite shape and volume

Section B –

Q5.

1. Draw a neat and labelled diagram of a room thermometer.

Answer: Draw a thermometer showing bulb, mercury column, scale, and markings.

2. Define the two types of forces and give examples.

Answer: Contact forces (e.g. muscular, frictional); Non-contact forces (e.g. gravitational, magnetic, electrostatic).

3. Differentiate between the three states of matter.

Answer: Solids – fixed shape & volume; Liquids – fixed volume but no fixed shape; Gases – no fixed shape or volume.

Q6.

1. An object thrown up comes down. Explain why.

Answer: Due to gravitational force pulling it back towards Earth.

2. Why is measuring length with a string not accurate?

Answer: String may stretch or bend, causing error. A ruler is more precise.

3. Give five examples of elements. Difference between element & compound?

Answer: Elements – Oxygen, Carbon, Iron, Sodium, Chlorine. Elements are pure; compounds are formed from 2 or more elements chemically combined.

Q7.

1. Define area of a surface. Find area of triangle base=15 cm, height=20 cm.

Answer: Area = ½ × base × height = ½ × 15 × 20 = 150 cm²

2. Which state of matter has least density and why?

Answer: Gas – particles are far apart.

3. Can stretching a string change its shape? What is its state of matter?

Answer: Yes, it changes shape but returns. It is a solid.

Q8.

1. Define static and rolling friction.

Answer: Static friction – force resisting start of motion; Rolling friction – resistance when object rolls.

2. Why does an eraser get smaller with use?

Answer: Friction removes small particles of rubber each time.

3. Why are aeroplanes streamlined like birds?

Answer: To reduce air resistance and move smoothly.

4. Which will have larger friction – heavy object or light object?

Answer: Heavy object

5. List 5 units used for measuring length.

Answer: mm, cm, m, km, inch.

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