Kinetic and Potential energy: Pt 1
State the Law of Conservation of Energy below. It MUST be in your OWN words and not copied Fill in the blanks with the correct word or symbol. Stored energy or energy due to position is known as potential energy. The formula for for calculating gravitational potential energy is GPE = mgh. The three factors that determine the amount of potential energy in an object are mass, height and gravity. Potential energy is measured in units of joules. Mass must be measured in units of kilograms. Gravitational pull must be measured in units of m Height must be measured in units of meters. Calculate the potential energy of a rock with a mass of 55kg while sitting on a cliff that is 27 m high. What distance is a book from the floor if the book contains 196 Joules of potential energy and has a mass of 5 kg? An automobile is sitting on a hill which is 20 m higher than ground level. Find the mass of the automobile if it contains 362,000 J of potential energy. Fill in the blank with the correct word or symbol. Energy of motion is known as kinetic energy. The formula for calculating kinetic energy is KE = 1 The two factors that determine the amount of kinetic energy in an object are mass and velocity. Kinetic energy is measured in units of joules. Mass must be measured in units of kilograms. Velocity must be measured in units of m Calculate the kinetic energy of a rock with a mass of 55 kg if it rolls down a hill with a velocity of 8 m Calculate the kinetic energy of a truck that has a mass of 2900 kg and is moving at 55 m Find the mass of a car that is traveling at a velocity of 60 m North. The car has 5,040,000 J of kinetic energy. How fast is a ball rolling if it contains 98 J of kinetic energy and has a mass of 4 kg?