### What Is Kinetic Energy?

Kinetic energy is described by the following equation, where m = mass of the object If there is a twofold increase in speed, the kinetic energy will increase by a. In words: Kinetic energy equals the mass of the moving object times the square of In equation form: kinetic energy (joules) = 1/2 x mass (kg) x velocity2 (m/s). Apr 19, Since, kinetic energy is directly proportional to mass and velocity of the What happens to velocity, when mass is increased and kinetic energy is the same?.

## Kinetic Energy

When you calculate an object's kinetic energy, its velocity is an important factor. Velocity, however, has nothing to do with an object's potential energy. The green ball has potential energy due to its height. The purple ball has kinetic energy due to its velocity.

### Kinetic and Potential Energy

Example Using A Roller Coaster One way to think of potential and kinetic energy is to picture a car on a roller coaster. As the car travels up the coaster it is gaining potential energy. It has the most potential energy at the top of the coaster.

As the car travels down the coaster, it gains speed and kinetic energy.

At the same time it is gaining kinetic energy, it is losing potential energy. At the bottom of the coaster the car has the most speed and the most kinetic energy, but also the least potential energy.

A car and a bicycle are traveling at the same speed, which has the most kinetic energy? The car does because it has more mass. A ball weighs around 1 kg and is traveling at 20 meters per second, what is its kinetic energy? A boy weighs 50 kg and is running 3 meters per second, what is his kinetic energy?

If you double the speed of an object, the kinetic energy increases by four times. Second, the faster something is moving, the greater the force it is capable of exerting and the greater energy it possesses.

**how doubling the velocity of an object effects its kinetic energy**

A high-speed collision causes much more damage than a fender bender in a parking lot. 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. These ideas are combined in the equation for kinetic energy. Which object would hurt more if it hit you i. We have to substitute numbers into the equation for kinetic energy.

Asteroid impacts on Earth: Everything in the solar system goes around the Sun. These paths around the Sun are called orbits. An orbit is a delicate balance between the forward motion of the orbiting body and the gravitational attraction between the Sun and the orbiting body.

Because of the gravitational attraction between and among all the orbiting bodies in the solar system, no two orbits are the same.

- Translational Kinetic Energy
- Increasing Translational Kinetic Energy

These small differences in orbit do not affect large planets very much, but small bodies orbiting the Sun - like asteroids - can be strongly affected. Asteroids - packed relatively close to one another in the asteroid belt - can collide with one another or graze past each other as their orbits shift over time. This may result in an asteroid bumping or bouncing out of Its previous orbit and changing into a different orbit that is called 'Earth-crossing. The Sun is shown in red, the Earth in green, and the asteroid in yellow.