Table of Contents
- 1 What happens to the energy transferred by this force?
- 2 What happens to the amount of energy a car has when the car goes faster?
- 3 Does energy transferred equal work done?
- 4 How does increasing the mass of the car change the total energy?
- 5 Do two vehicles with the same kinetic energy have the same stopping distance?
- 6 What is the amount of kinetic energy of a car?
What happens to the energy transferred by this force?
When Work is Done against frictional forces, energy is transferred, incresing the temperature of the moving object and the contact surface. When a force is used to move an object, energy is transferred (because the object has moved) and we say that Work is Done.
What happens to the amount of energy a car has when the car goes faster?
One of the interesting things about kinetic energy is that it increases with the velocity squared. This means that if a car is going twice as fast, it has four times the energy. You may have noticed that your car accelerates much faster from 0 mph to 20 mph than it does from 40 mph to 60 mph.
What is relation between work done by a force and kinetic energy?
The work-energy theorem states that the net work done by the forces on an object equals the change in its kinetic energy.
How is energy transferred into force?
The correct answer is muscular strength. Muscular strength refers to the amount of force a muscle can produce with a single maximal effort. It is the ability to tranfer energy in the muscles into force.
Does energy transferred equal work done?
Work done is equal to energy transferred.
How does increasing the mass of the car change the total energy?
Mass affects/does not affect the amount of total energy. 5. As an object falls under the influence of gravity, kinetic energy increasesy decreases / remains the same.
What happened to the original energy of the moving car?
If a car moving at 100 kilometres per hour hits a concrete wall, all of its kinetic energy must be turned into other forms of energy. A lot of the kinetic energy is converted to heat during the metal deformation. …
What is the relationship between force and energy?
When two objects interact, each one exerts a force on the other that can cause energy to be transferred to or from the object. For example, when energy is transferred to an Earth-object system as an object is raised, the gravitational field energy of the system increases.
Do two vehicles with the same kinetic energy have the same stopping distance?
If the vehicles started with the same kinetic energy, it would take the same amount of work to stop them. With the same force, this would be the same stopping distance. The fact the two vehicles have the same starting momentum doesn’t mean they have the same starting kinetic energy.
What is the amount of kinetic energy of a car?
If the cars are driving at the same speed, then the bigger car will have more kinetic energy. However, the amount of kinetic energy a moving object has is given by the expression. 1/2 m v^2. Where m is the mass of the car and v is its velocity.
What is the relationship between acceleration and Mass in a car?
Answer number 2: They stop in the same amount of time. Yes, it’s true that the car has a lower mass and a higher acceleration. However, it starts with a much larger velocity since the two vehicles have the same starting momentum.
How do you calculate the force needed to stop a car?
calculate how much force is needed to stop the car. Kinetic Energy = 0·5 x mass x velocity 2 = 0·5 x 800 x 25 2 = 0·5 x 800 x 625 = 250,000J. Energy = Force x Distance. The equation can be rearranged to give. Force = Energy ÷ Distance = 250,000 ÷ 50 = 5,000 N.