Explanation

Light rays falling on a mirror undergo reflection and those falling on water undergo refraction.

Explanation

Kinetic energy is the energy an object has because of its motion.

Explanation

• Kinetic energy is the energy an object possesses due to its motion.
• Any moving object, such as a car, a ball, or a person, has kinetic energy.
• The amount of kinetic energy an object has depends on its mass and velocity.

Explanation

 A DIAC is a full-wave or bi-directional semiconductor switch that can be turned on in both forward and reverse polarities.

Explanation

USA has the largest hydrocarbon dumps.

Explanation

Potential energy is the stored form of energy in an object, which can be released when the object is moved, stretched, or compressed.

Examples:

• Gravitational potential energy (e.g., a ball at the top of a hill)
• Elastic potential energy (e.g., a stretched rubber band)
• Electrical potential energy (e.g., a charged battery)

Explanation

Kinetic energy is the energy of motion, and any object that is moving has kinetic energy.

• A moving car (energy from motion)
• A moving runner (energy from motion)
• A moving bicycle (energy from motion)

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

• 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

Potential energy is stored energy due to an object's position or state.

Examples:

• A stretching spring (elastic potential energy)
• A stone lying at a height (gravitational potential energy)
• A book placed on a table (gravitational potential energy)
• A pressed spring (elastic potential energy)