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Physics is the branch of science that deals with the study of matter, energy, forces, motion, heat, light, sound, electricity, magnetism, and other natural phenomena. Physics helps us to understand how the world works and how we can use its principles to solve problems, invent new technologies, and explore the universe.

If you are a student in form 1, you might be wondering what are the topics that you need to learn in physics. You might also be looking for a way to download physics form 1 questions and answers in PDF format so that you can revise and practice your skills. In this article, we will provide you with an overview of the main topics covered in physics form 1, as well as some sources and steps to download physics form 1 questions and answers in PDF format.

## Physics Form 1 Topics

The following are some of the major topics that you will learn in physics form 1. Each topic has subtopics that cover specific concepts, formulas, experiments, calculations, diagrams, graphs, tables, etc. You will also find some sample questions and answers for each topic to help you test your understanding.

### Measurement 1

This topic introduces you to the basic concepts of measurement in physics. You will learn about:

#### Units and dimensions

Units are standard quantities that are used to measure physical quantities. For example, meter (m) is a unit of length, kilogram (kg) is a unit of mass, second (s) is a unit of time, etc. Dimensions are the powers to which the base units are raised to express a physical quantity. For example, speed has the dimension of length/time or [L/T], force has the dimension of mass*length/time^2 or [M*L/T^2], etc.

Some sample questions are:

• What is the SI unit of temperature?

• What is the dimension of energy?

• Convert. Convert 50 cm to m.

• What is the difference between a scalar and a vector quantity?

• The SI unit of temperature is kelvin (K).

• The dimension of energy is [M*L^2/T^2].

• 50 cm = 0.5 m.

• A scalar quantity is a physical quantity that has only magnitude, while a vector quantity is a physical quantity that has both magnitude and direction.

#### Measuring instruments and errors

This subtopic teaches you how to use different instruments to measure physical quantities, such as length, mass, time, temperature, etc. You will also learn about the types and sources of errors that can affect the accuracy and precision of your measurements, and how to reduce or correct them.

physics form 1 work, energy, power, machines, heat, temperature, expansion of solids, liquids, gases, transfer of heat, light, reflection at plane surfaces, refraction of light, lenses, dispersion of light, sound, production of sound waves, properties of sound waves, electrostatics, effects of electric charges, electric fields, electric potential, capacitors, electric current, effects of electric current, heating effect of electric current, chemical effect of electric current, magnetic effect of electric current, electromagnetism, electromagnetic induction. Questions and Answers PDF Download.

Some sample questions are:

• What instrument is used to measure mass?

• What is the difference between systematic and random errors?

• How can you find the percentage error of a measurement?

• An instrument that is used to measure mass is a balance.

• Systematic errors are errors that are consistent and predictable, and are caused by faulty instruments, methods, or assumptions. Random errors are errors that are unpredictable and vary from trial to trial, and are caused by human mistakes, environmental factors, or fluctuations in the instruments.

• You can find the percentage error of a measurement by using the formula: percentage error = (experimental value - true value / true value) * 100%.

#### Scalars and vectors

This subtopic introduces you to the concept of scalars and vectors, which are two types of physical quantities. You will learn how to represent vectors graphically and algebraically, how to add and subtract vectors using different methods, and how to find the resultant and equilibrant of a system of vectors.

Some sample questions are:

• Give two examples of scalar quantities and two examples of vector quantities.

• How can you find the magnitude and direction of a vector?

• What is the parallelogram law of vector addition?

• Two examples of scalar quantities are speed and distance. Two examples of vector quantities are displacement and force.

• You can find the magnitude of a vector by using Pythagoras' theorem or trigonometry, depending on the given information. You can find the direction of a vector by using trigonometry or geometry, depending on the given information.

• The parallelogram law of vector addition states that if two vectors are represented by two adjacent sides of a parallelogram, then their resultant is represented by the diagonal of the parallelogram that passes through their common point.

### Pressure

This topic introduces you to the concept of pressure, which is the force per unit area exerted by a fluid or a solid on a surface. You will learn about:

#### Atmospheric pressure and barometer

This subtopic explains what atmospheric pressure is, how it varies with altitude and weather conditions, and how it affects living things. You will also learn how to measure atmospheric pressure using a device called a barometer, which can be either mercury-based or aneroid-based.

Some sample questions are:

• What is atmospheric pressure?

• How does atmospheric pressure change with altitude?

• How does a mercury barometer work?

• Atmospheric pressure is the pressure exerted by the weight of the air above a given point on the earth's surface.

• Atmospheric pressure decreases with increasing altitude, because there is less air above a higher point than a lower point.

• A mercury barometer works by balancing the atmospheric pressure with the pressure exerted by a column of mercury in a glass tube. The height of the mercury column indicates the atmospheric pressure.

#### Liquid pressure and Pascal's principle

This subtopic explains what liquid pressure is, how it varies with depth and density, and how it affects submerged objects. You will also learn about Pascal's principle, which states that the pressure applied to an enclosed fluid is transmitted equally to all parts of the fluid and its container.

Some sample questions are:

• What is liquid pressure?

• How does liquid pressure change with depth?

• What is an What is an example of Pascal's principle in action?

• Liquid pressure is the pressure exerted by a liquid on any point in contact with it.

• Liquid pressure increases with increasing depth, because there is more liquid above a deeper point than a shallower point.

• An example of Pascal's principle in action is a hydraulic lift, which uses a small force applied to a small piston to produce a large force on a large piston, by transmitting the pressure through an enclosed liquid.

#### Gas pressure and Boyle's law

This subtopic explains what gas pressure is, how it varies with temperature and volume, and how it affects balloons, bubbles, and other objects. You will also learn about Boyle's law, which states that the pressure of a fixed mass of gas at constant temperature is inversely proportional