Kinetic Energy | MCQs

Explanation

Kinetic energy is the energy an object possesses due to its motion.

The faster the object moves, the more kinetic energy it has.

Explanation

Kinetic energy (KE) is expressed as: 

KE = 1/2 * mv² 

Where: m = mass (dimensions: M¹), v = velocity (dimensions: L¹T⁻¹), and v² = (L¹T⁻¹)² = L²T⁻². 

Therefore, the dimensions of KE are: 

KE = M¹ * (L²T⁻²) = M¹L²T⁻² 

Explanation

The kinetic energy (K.E) of an object is calculated as:

• K.E = (1/2) x mass x velocity^2
• = (1/2) x 1 kg x (1 m/s)^2
• = 0.5 Joule
• = 1/2 Joule

So, the kinetic energy of the body is 1/2 Joule or 0.5 Joule.

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

• Kinetic energy is the energy of motion.
• It is the energy an object possesses when it is in motion, such as a rolling ball, a moving car, or a flying bird.
• The amount of kinetic energy an object has depends on its mass and velocity.

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.