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The driver of a car slams on her brakes to avoid colliding with a deer crossing the highwaywhat happens to the car's kinetic energy as it comes to rest?
Wiki User
∙ 15y ago
The kinetic energy is lost to the environment as sound, heat and motion. Energy is always conserved, so if the car stops all of the energy it had while it was moving has to have been utilised somewhere else. The brakes will have heated up, due to the friction with the wheels. Depending on how hard she braked, she may have locked her tyres. The rubber scraping across the road will have heated up as well, possibly to the extent of melting it! Undoubtedly the image of tyres locking on the road comes with the sound of squealing rubber. Sound is emitted from this contact, spreading rapidly outwards from the source. Small rocks will be kicked aside by the path of the car as it slows down, and the suspension may even be slightly bent by the force of the deceleration. All these different things come together to take the kinetic energy away from the car itself. If any of these were to decrease (tyres with less grip, worse brakes, smoother road surface)then energy would not be lost as easily, and the car would take longer to slow down!
Wiki User
∙ 15y ago
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A collision in which kinetic energy may be transferred between the colliding particles but the total kinetic energy remains the same?
This is called an elastic collision. In this case both momentum and kinetic energy is conserved.
A collision in which the total momentum and kinetic energy remain constant?
Kinetic energy is only conserved if the collision is elastic. All other collisions will have some loss of kinetic energy even when momentum is conserved.
What happens to matter when it gains kinetic energy?
When an object gains kinetic energy, it moves faster.
When Bruce lets go of the weight what happens to its energy?
When an object falls down, potential energy is converted to kinetic energy.
What happens to an object's kinetic energy when its speed doubles?
-It increases
Two objects move separately after colliding with the same total momentum and kinetic energy?
Inelastic
A collision in which kinetic energy may be transferred between the colliding particles but the total kinetic energy remains the same?
This is called an elastic collision. In this case both momentum and kinetic energy is conserved.
What increases when the average Kinetic energy of the particles in a material increases?
The average kinetic energy of colliding particles can be increased by increasing temperature.
Where does the energy to form the transition state come from?
The energy comes from the kinetic energy between colliding particles.
What is kinetic theory and how is it used?
Kinetic theory is when a high number of particles such as temperature, viscosity and volume that move randomly colliding in different directions. The speed of particles has an impact on temperature and gas pressure.
What happens to the kinetic energy when temperature is changed?
When the temperature is increased the kinetic energy increases, and when it is decreased the kinetic energy decreases.
What happens to kinetic energy if you move?
Increases.
How do the particle move in a gas?
the atoms and molecules are free to move independently, colliding frequently.
A collision in which the total momentum and kinetic energy remain constant?
Kinetic energy is only conserved if the collision is elastic. All other collisions will have some loss of kinetic energy even when momentum is conserved.
What happens to matter when it gains kinetic energy?
When an object gains kinetic energy, it moves faster.
The fourth postulate of kinetic theory states that collisions between particles occur quickly such that most of the time particles are in motion and not colliding Predict the effect of increasing the?
Increasing the concentration of the reactants will increase the rate of collisions, but will not change the fact that most of the time particles are in motion and not colliding.
What happens when you add kinetic energy to a solid?
When you add kinetic energy to a solid the molecules won't move
