Quick Answer: How Does The Kinetic Energy Of A Moving Body Depends On Its Speed And Mass?

On what factors does the kinetic energy of a body depends Class 9?

K.E.=1/2 mv2 IT DEPENDS ON MASS AND square of the VELOCITY..

What is the kinetic energy of a body?

It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity. Having gained this energy during its acceleration, the body maintains this kinetic energy unless its speed changes.

Which would have greater effect on the kinetic energy?

Doubling the velocity would have a greater effect on the kinetic energy of an object because the formula contains the square of velocity.

What is the relationship of speed and position of object?

The greater the speed an object has, the faster it changes position.

How does the kinetic energy of a moving body depends on its speed?

This equation reveals that the kinetic energy of an object is directly proportional to the square of its speed. That means that for a twofold increase in speed, the kinetic energy will increase by a factor of four. For a threefold increase in speed, the kinetic energy will increase by a factor of nine.

How is kinetic energy affected by the speed and mass of the object in motion?

If you double the mass of an object, you double the kinetic energy. If you double the speed of an object, the kinetic energy increases by four times. The word “kinetic” comes from the Greek word “kinesis” which means motion. Kinetic energy can be passed from one object to another in the form of a collision.

What if I push an object which is already moving horizontally?

Thus, force would cause. acceleration in horizontal motion.

Which object has the most inertia?

The smaller the inertia (mass) of an object, the less force is needed to accelerate it at a given rate. Since inertia is simply just a measurement of mass, the bowling ball has a higher mass, thus inertia, than the tennis ball.

Does mass increase with speed?

The mass of an object does not change with speed; it changes only if we cut off or add a piece to the object. … Since mass doesn’t change, when the kinetic energy of an object changes, its speed must be changing. Special Relativity (one of Einstein’s 1905 theories) deals with faster-moving objects.

What will happen to the kinetic energy of a body if its velocity is doubled?

Answer. If velocity is doubled, Kinetic Energy increases by 4 times. Kinetic energy of a body is the energy possessed by it, by virtue of its motion, i.e. if the body is moving it will always have kinetic energy.

Why does kinetic energy increase with the square of velocity?

Because kinetic energy is proportional to the velocity squared, increases in velocity will have an exponentially greater effect on translational kinetic energy. Doubling the mass of an object will only double its kinetic energy, but doubling the velocity of the object will quadruple its velocity.

How does the kinetic energy of a body depends on its speed and mass?

(i) Kinetic energy of a moving body is directly proportional to the square of the speed of the moving body. (ii) Kinetic energy of a moving body is directly proportional to the mass of the moving body.

What does the inertia of a moving object depend on?

The inertia of a moving object depends on the mass of the object. Heavier the item, the Heavier is its tendency to resist the change in state of motion. … The more inertia that an object has, the more mass that it has.

Will the kinetic energy of an object depends on the speed of the observer?

Answer: Explanation: kinetic energy depends upon the frame of reference (in your question it is the speed of the observer). … since kinetic energy is directly proportional to velocity so same is the case with kinetic energy.

What does the potential energy of an object depend on?

The amount of gravitational potential energy an object has depends on its height and mass. The heavier the object and the higher it is above the ground, the more gravitational potential energy it holds.

Does mass or speed affect kinetic energy more?

Anytime matter is in motion it has kinetic energy. The faster an object moves, the more kinetic energy it has. The more mass an object has, the more kinetic energy it has.

Why is t used for kinetic energy?

Kinetic energy is sometimes represented by the letter T. This probably comes from the French travail mécanique (mechanical work) or quantité de travail (quantity of work).

On what factors does the kinetic energy of a body depend?

The kinetic energy of a body or object depends upon its velocity and mass.

Does inertia depend on mass?

The inertia of an object is a measure of its resistance to a change in the state of its motion. It is solely dependent on the mass of the object, with more massive objects having larger inertia and a greater tendency to resist changes to their motion.

What kind of transformation takes place when a body is thrown upward direction?

When a ball is thrown straight up into the air, all its initial kinetic energy is converted into gravitational potential energy when it reaches its maximum height.

Does speed affect kinetic energy?

It turns out that an object’s kinetic energy increases as the square of its speed. A car moving 40 mph has four times as much kinetic energy as one moving 20 mph, while at 60 mph a car carries nine times as much kinetic energy as at 20 mph. Thus a modest increase in speed can cause a large increase in kinetic energy.