What determines an object's kinetic energy?
Responses
Mass and position
Mass and position
Weight and position
Weight and position
Weight and speed
Weight and speed
Mass and speed
Correct answer: Mass and speed
Mass and speed determine an object's kinetic energy.
The correct answer is "Mass and speed" determine an object's kinetic energy.
To understand how mass and speed determine kinetic energy, let's break it down.
- Mass: The more massive an object is, the more kinetic energy it will have. Kinetic energy is directly proportional to mass. This means that if you increase the mass of an object, its kinetic energy will also increase.
- Speed: The more speed an object has, the more kinetic energy it will have. Kinetic energy is directly proportional to the square of the speed. This means that if you double the speed of an object, its kinetic energy will increase by a factor of four (2 squared is 4).
To calculate the kinetic energy (KE) of an object, you can use the following formula:
KE = 1/2 * mass * speed^2
So, as you can see, both mass and speed play a crucial role in determining an object's kinetic energy.