Kinetic energy

the physics involved in energy, Newton’s Laws of Motion, and angular momentum each contribute immensely to being successful in the Olympics. Learning how to master these physical science concepts can aid in becoming a strong olympic gymnast. To begin, there is the running start; this is where energy plays a major role. During a gymnast’s running start for a vault, she gains kinetic energy, which is, simply put, the energy of motion. Looking at the equation for kinetic energy (KE = (½) mv^2), you…

When a ball is kicked at its side it begins to spin around in its place according to the location of the kick. If it is kicked at the side and a bit towards the bottom the ball rises up in the air while spinning on its own axis. In the beginning it will fly exactly in the direction of the kick, and as it slows down due to friction with the air, the spinning motion will cause the air on one side to move faster than that on the other side and because of the Magnus effect the ball will then change…

was to observe how the law of conservation of energy applies to a roller coaster system. In doing this we were able to determine the velocity of the cart as a function of its height upon the roller coaster, find the kinetic and potential energy for each trial of the cart and conclude energy loss due to friction. The results from part one concluded that as the roller coaster cart went down a hill the potential energy was converted into kinetic energy that resulted in an increase of speed. When…

Bouncy balls bounce because the material of the ball is extremely elastic and can convert kinetic energy from falling into potential energy and back into kinetic energy again with little loss of momentum. They are used in many classrooms because they can easily demonstrate conservation of momentum through a highly elastic collision. Like many things made out of rubber, bouncy balls have very high elasticity, meaning they rapidly return to their resting state after being stretched or squashed. If…

0 m/s² (C) 2.5 m/s² (D) 3.0 m/s² 9. There are Several forms of energy produced by the source cause. The energy generated by the movement of the object particles called ........ (A) heat energy (B) light energy (C) of electric energy (D) sound energy 10. When you throw a ball vertically upwards, there will be a change of energy of energy .... (A) the potential to be heat (B) kinetic into heat (C) potential into kinetic (D) kinetic into potential 11. Look at the picture above! Large…

What is entropy? The interaction of energy and matter governs our lives. We take for granted our ability to use chemicals in batteries to produce sound from MP3 Player. We get into a car and use petrol to travel in hours distance that would have taken our ancestors days. Energy and matter interact on other scales too –from the remnants of the explosion of star hundreds of light years in diameter, to the nucleus of an atom 10-9 mm in diameter. The way in which energy and matter behave affects…

equation for drag is shown below. F=pCA/2 v^2 p = The density of the air. C = The drag coefficient of the projectile. A = The area of the object that the air presses on. v = The velocity of the projectile. The drag equation returns a force as newtons of energy. For example, p = 1.225 kg/m3 (the density of air) C = 0.5 (the drag of a sphere) A = 0.5 m2 (the surface area of a sphere) v = 10 m/s (the initial velocity of the sphere) F=(1.225*0.5*0.5)/2*〖10〗^2 F=0.30625/2*〖10〗^2 F=15.3125N Changing…

gravitational potential energy, which is converted to kinetic energy as it falls to the power plant. The power plant uses its turbines to convert the kinetic energy to electrical energy. In this assignment, we are figuring out “to what extent can hydropower meet the electrical energy needs in the United States and China for the coming decades?”. Essentially, we need to calculate the amount of energy hydropower that can be practically generated and see if it can satisfy the electrical energy…

different heights Energy cannot be destroyed or created it can only be transferred in to different types of energy like kinetic, heat, light, electrical, chemical, elastic potential, gravitational potential, thermal, nuclear and sound energy. When calculating energy, you would work in measurement like joules, kilojoules and millijoules. There are many types of energy like kinetic energy which is when a object is moving like a car driving and ball being thrown and a riding a bike. Sound energy…

engineers ability to understand that physics. There is a lot going on when people press on the brake pedal in their car. The most basic principle of brake pads is in fact friction. This friction is the thing that transfers the energy of the car moving forward to heat energy. Brakes also use pressure as a leverage when pressing the brake pedal. There is also, momentum and even sound in the physics brakes. All of which are physical properties. Brakes have multiple pieces that all work together…