What is kinetic energy?(1 point)
Responses
the energy of motion
the energy of motion
stored energy
stored energy
thermal energy
thermal energy
the energy of radiation
the energy of radiation
The correct answer is: the energy of motion.
The correct answer is "the energy of motion." Kinetic energy is the energy possessed by an object due to its motion. To understand this concept, you can think of a moving car. As the car speeds up, it gains kinetic energy, and as it slows down, it loses kinetic energy. The amount of kinetic energy an object has depends on its mass and its velocity. The formula to calculate kinetic energy is KE = 1/2 * mv^2, where KE is the kinetic energy, m is the mass of the object, and v is its velocity.
Kinetic and Thermal Energy Quick Check
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Question
A fisherman in a boat is drinking a cup of hot coffee. The large lake below his boat is full of cold water. Which statement is an accurate comparison of the lake water and the coffee?(1 point)
Responses
The lake will have more total thermal energy, and the particles in the lake water will be moving faster.
The lake will have more total thermal energy, and the particles in the lake water will be moving faster.
The coffee will have more total thermal energy, and the particles in the coffee will be moving faster.
The coffee will have more total thermal energy, and the particles in the coffee will be moving faster.
The coffee will have more total thermal energy, but the particles in the lake water will be moving faster.
The coffee will have more total thermal energy, but the particles in the lake water will be moving faster.
The lake will have more total thermal energy, but the particles in the coffee will be moving faster.