DEMO|PAPER 181-QNS

 

HAYOMBO SECONDARY SCHOOL

FIII PHYSICS MIDTERM EXAMINATIONS-MARCH 2024

 TIME 3HRS

INSTRUCTIONS:

1. Answer ALL Questions

SECTION A:16 MARKS

1. Choose the correct answer

(i)What among the following pair of instruments can be used to measure the width of a blackboard?

1. Micrometre and beam balance

2. Metre rule and tape measure

3. Beam balance and vernier caliper

4. Tape measure and beam balance.

(ii) Calculate the relative density of an object that weighs 3.5N when in air and 2.8N when in fluid.

1. 0.8

2. 6.4

3. 5.0

4. 3.5

(iii) Mosquito and pond skaters are able to walk on top of water because of

1. Capillarity

2. Osmosis

3. Diffusion

4. Surface tension

(iv) Identify the statement that describes the pascal's principle

1. Pressure is equally transmitted in liquid

2. Pressure is the ratio of force to area

3. Pressure is affected by gravity

4. Pressure produces upthrust

(v) Jongo walked 10km today.What he covered is called

1. Distance

2. Velocity

3. Speed

4. Displacement

(vi) When an object is placed at C in front of a concave mirror,the resulted image is

1. Real

2. Virtual

3. Magnified.

4. Erect.

(vii) What happens to the number of images formed when the angle between the mirrors is reduced?

1. Increases

2. Decrease

3. Becomes equal.

4. Undefined

(viii) The following are factors affecting pressure in liquid

1. Depth, acceleration due to gravity and density

2. Depth,Volume and Density

3. Acceleration due to gravity,Depth and Volume

4. Mass,Volume and Depth

(ix) According to Ohm's law,the increase of voltage across the terminal,causes current to

1. Decrease

2. Increase

3. Remain constant

4. Become undefined

(x) When a solid is heated,the particles which are transferred are

1. Electrons

2. Protons

3. Neutrons.

4. Protons and Electrons

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