Recent questions in Physics Form 3

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1 answer

Sketch a velocity time graph for a body thrown vertically upwards to a maximum height.

asked Jul 29, 2021 in Physics Form 3 by anonymous

0 votes

1 answer

The ticker-time tape below shows a section of a long tape. The dots were made at a frequency of 40Hz.

asked Jul 29, 2021 in Physics Form 3 by anonymous

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1 answer

A stone is let to fall vertically down from a window on the 10th floor of a building 40m above the ground. Find the time taken by the stone to reach the ground.

asked Jul 26, 2021 in Physics Form 3 by anony mous

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1 answer

State snells law of refraction. Describe an experiment to verify it.

asked Jul 26, 2021 in Physics Form 3 by anony mous

0 votes

1 answer

A ball is thrown horizontally from the top of a vertical tower and strike the ground at point 50m from the bottom of the tower given that the height of the tower is 45m, determine the

asked Jul 26, 2021 in Physics Form 3 by anony mous

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2 answers

A ray of light passing from air to glass is incident at angle of 30°. Calculate the angle of refraction in the glass if the refractive index of glass is 1.50.

asked Jul 26, 2021 in Physics Form 3 by anony mous

0 votes

1 answer

A body accelerates uniformly from its initial velocity u, to the final velocity, v, in time t. the distance travelled during this is s. If acceleration is donated by letter a, show that;

asked Jul 26, 2021 in Physics Form 3 by anony mous

0 votes

1 answer

Define the terms velocity and acceleration.

asked Jul 26, 2021 in Physics Form 3 by anony mous

0 votes

1 answer

Given that the relationship between pressure P and temperature T in kelvin is of the form P=MT+N determine:1) the value of M. 2) the value of N.

asked Jul 18, 2021 in Physics Form 3 by jnell

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1 answer

State two factors that affect the capacitance of a parallel plate capacitor.

asked Jul 14, 2021 in Physics Form 3 by anony mous

0 votes

1 answer

The figure below shows an electric circuit connected to a battery. If the internal resistance of the battery is 0.2Ω.

asked Jul 13, 2021 in Physics Form 3 by anony mous

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1 answer

An immersion heater rated 4000W is used continuously for 1hour 30 minutes. Calculate the cost of operation at Ksh.6.70 per unit.

asked Jul 13, 2021 in Physics Form 3 by anony mous

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1 answer

What is a machine?

asked Jul 13, 2021 in Physics Form 3 by anony mous

0 votes

1 answer

An electric heater 1000W is used to heat 0.2kg of ice. Initially at -10°C to until all the mass changes to steam at 100°C.

asked Jul 13, 2021 in Physics Form 3 by anony mous

0 votes

1 answer

The diagram below shows the main features of a domestic refrigerator. Study the diagram and answer the questions that follow.

asked Jul 13, 2021 in Physics Form 3 by anony mous

0 votes

1 answer

What do you understand by the term absolute zero temperature.

asked Jul 13, 2021 in Physics Form 3 by anony mous

0 votes

1 answer

Sketch a velocity - time graph on the axes provided for

asked Jul 13, 2021 in Physics Form 3 by anony mous

0 votes

1 answer

2.5 kg of water at 20°C is heated in an electric kettle connected to 250V supply. If it took 20 minutes to boil at 100°C specific heat capacity of water is 4200JKg−1 k−1. Determine the power of the kettle element.

asked Jul 13, 2021 in Physics Form 3 by anony mous

0 votes

1 answer

State Newton's second law of motion. (1 mark) A resultant force of 10N acts on a body of mass 0.4kg starting from rest. Find the distance travelled after 10 seconds.

asked Jul 13, 2021 in Physics Form 3 by anony mous

0 votes

1 answer

A girl standing at a distance claps her hands and hears an echo from a tall building 2 seconds later. If the speed of sound in air is 340m/s, determine how far the building is.

asked Jul 7, 2021 in Physics Form 3 by anonymous

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