PHYSICS [1 Mark Question Answer]

The sun’s solar energy is used up by plants during the photosynthesis process. As a byproduct of photosynthesis, oxygen is released into the atmosphere. As a result, we can say that the sun provides an indirect source of oxygen to living things.

Power plants → electrical energy
Car → kinetic energy
space shuttle → mechanical energy

one misuse: nuclear power could mean terrorists attempting to steal plutonium to make a crude nuclear weapon or to contaminate the environment as an act of blackmail.

one use: nuclear energy to generate heat, which most frequently is then used in steam turbines to produce electricity in a nuclear power plant.

Generator and transformer converts electric energy into magnetic energy.

Electric motor are of 2 types which converts electrical energy into mechanical energy. AC motor: Converts alternating current into mechanical power. DC motor: Converts direct current into mechanical power.

The devices in which electricity is converted into heat Electric heater and electric iron.

It can be quickly transferred from one location to another. It can be generated easily. It can be stored in the form of batteries. It can be easily converted into other forms of energy like thermal energy, mechanical energy.

The device that converts sound energy into magnetic energy is called a microphone.

Microphones are a type of transducer – a device which converts energy from one form to another. Microphones convert acoustical energy (sound waves) into electrical energy (the audio signal).

when a person hits the drum with a stick, the kinetic energy of the stick is transferred to the drum and the drum produces sound.

solar panels take sunlight from sun in day time and convert it into electric energy.

In photosynthesis chlorophyll transforms light energy to chemical energy.

The water in the pressure cooker is converted into steam by the heat energy in the burning flame under the pressure cooker. The water and the steam get energy from the heat. This energy works by displacing the nozzle.

Mechanical energy is the sum of kinetic energy and potential energy. It describes the energy of a body because of its motion or position or both.

The energy released during disintegration of nucleus of an atom is in the form of sound energy.

When an electric current flows through an electric bulb, the electric energy first changes to heat energy and then to light energy.

When we speak in front of a microphone, the sound energy changes into electric energy.

During photosynthesis by plants the light energy changes to chemical energy.

During the charging of a car battery, the electric energy changes into chemical energy.