Explanation

• Cranes use movable pulleys to lift and move heavy loads.
• The pulleys are attached to a cable or rope that wraps around a drum or wheel.
• It allowing the load to be lifted or moved in a vertical direction.

Explanation

A movable pulley decreases the amount of input force needed to lift a load.

By allowing the user to apply force over a longer distance.

Explanation

The capacitance  𝐶 is defined as the charge  𝑄 stored per unit voltage  𝑉 

Mathematically, it's represented as:

𝐶 =𝑄/𝑉

So, 1 farad (F) is equal to 1 coulomb (C) per volt (V), but the equation doesn't imply that 

1C=1V.

Instead, it means that a capacitor has a capacitance of 1 farad if it can store 1 coulomb of charge when a voltage of 1 volt is applied across it.

Explanation

The equation of Bernoulli's theorem is not related to the turning of a musical instrument. 

Explanation

On a clear day at noon, the intensity of the solar energy reaching the Earth's surface is approximately 1kW/m 2 (kilowatts per square meter),

which is equivalent to 1000 W/m².

Among the given options, the closest match is:

1 kW/m² (or 1 K W m-2 if expressed in kilowatts per square meter).

Explanation

• Renewable sources, such as solar energy, wind energy, hydro energy, and biomass, are sustainable and can be replenished naturally.
• They can be used over and over again, making them virtually unlimited.

Explanation

• Non-renewable sources, such as fossil fuels (coal, oil, and gas), nuclear energy, and minerals.
• They are limited in supply and cannot be replenished in a short period of time.
• Once they are used, they are gone forever.

Explanation

• The fuel (gasoline or diesel) in a car is a form of chemical energy, which is stored in the bonds of the fuel molecules.
• When the fuel is burned in the engine, this chemical energy is converted into kinetic energy (the energy of motion) through a series of processes, including combustion, transmission, and propulsion.

Explanation

• When Hyder hits the nail with a hammer, kinetic energy (the energy of motion) is involved as the hammer moves towards the nail.
• Sound energy is also involved as the hammer strikes the nail, producing a sound.
• However, electrical energy is not involved in this process.

Explanation

• The batteries in the toy car store chemical energy.
• It is converted into electrical energy when the batteries are connected to the toy car's motor.