Is it possible for you to have no kinetic energy at all?
The answer is yes. Picture a hockey puck sitting on the ice. It does not have any potential energy or kinetic energy. However, if an external force acts on it, such as a hockey stick, it can move and have kinetic energy.
What would happen if we didn’t have kinetic energy?
It you somehow removed the kinetic energy from a moving object, it would stop moving since Ke=1/2mv^2. If it has no kinetic energy, but still has mass, then it must not have velocity.
What letter does the ball have the greatest kinetic energy?
As the ball falls from C to E, potential energy is converted to kinetic energy. The velocity of the ball increases as it falls, which means that the ball attains its greatest velocity, and thus its greatest kinetic energy, at E. 19.
At what point is kinetic energy greatest?
Kinetic energy is energy an object has because of its motion and is equal to one-half multiplied by the mass of an object multiplied by its velocity squared (KE = 1/2 mv2). Kinetic energy is greatest at the lowest point of a roller coaster and least at the highest point.
What is the gravitational potential energy of the ball when it reaches its highest point?
20.4 m
What are the factors that affect gravitational potential energy?
Gravitational Potential Energy is determined by three factors: mass, gravity, and height.
What kind of energy possessed by the ball thrown into the air at a point before it reaches its maximum height?
gravitational potential energy
Is throwing a ball potential energy?
When you throw a ball, you transfer energy to it and it moves. When you do work to lift a ball from the ground, you give the ball a different type of energy, called potential energy. is stored energy, or the energy an object has due to its position or its shape.
Why does the ball bounce back after striking the ground?
When the ball hits the ground, it is pressed with a force of gravity and other forces that was exerted on it. Due to these forces it’s shape is deformed and to retain back its shape, its elastic nature exerts the same amount of force that deformed it. So the ball bounces until it gains back its shape.
Why is rubber so bouncy?
When all three balls are dropped from the same height, the rubber ball will bounce the highest because it has the greatest elasticity. When the rubber ball hits the ground it gets compressed, or squished, and because it is very elastic, it quickly returns to its original shape.
Why does a rubber ball bounce back on hitting a floor whereas a metal ball doesn t?
It’s a basic principle in physics that energy cannot be lost. The rubber ball starts off with kinetic energy, hits the wall, and rebounds moving with about the same kinetic energy. So no energy is lost. That means little energy is left for the iron ball to bounce back.
Why does a ball bounce less on carpet?
When a basketball bounces off of a surface, some of its energy is absorbed by that surface. A hard surface, such as concrete, absorbs less energy compared with a soft surface, such as a carpeted floor. The more energy absorbed by the surface, the less that remains in the ball for it to bounce.
Which surface does a tennis ball bounce the highest on?
concrete
Are clay courts slower?
Clay courts Clay is the slowest surface of the three, meaning it slows down the speed of the tennis ball and generates a higher bounce. It’s most effective for baseline players and those who use a lot of spin on the ball. Clay courts hinder big-hitters who rely on speed to beat their opponents.
Can an object have zero energy?
If a particle has no mass (m = 0) and is at rest (p = 0), then the total energy is zero (E = 0). But an object with zero energy and zero mass is nothing at all. Therefore, if an object with no mass is to physically exist, it can never be at rest. But light is not the only massless object.
Can an object have 0 potential energy?
The potential energy U of a body at some point x is defined to be the work done on the object by an extra, imposed force to move it from a reference position to its current position. The reference point is called the “zero point” of potential energy as the potential energy will be zero there by definition.
What happens to kinetic energy when it hits something?
What happens to its kinetic energy? When an object falls freely, its potential energy gets converted into kinetic energy. When the object hits the ground, its kinetic energy gets converted into heat energy and sound energy.
How do you destroy energy?
The first law of thermodynamics, also known as Law of Conservation of Energy, states that energy can neither be created nor destroyed; energy can only be transferred or changed from one form to another. For example, turning on a light would seem to produce energy; however, it is electrical energy that is converted.