Which type of mechanical energy do the following contain? Kinetic Energy, Potential Energy, or Both
A Car traveling at 100 mph along a flat road - KE
A rubber band that has been stretched - PE
A bowling ball rolling down a lane - both
A piano lifted to a second story window - PE
A snowboarder jumping off a ramp - both
An Airplane traveling at 30000 feet & at a speed of 450mph - both
Kinetic
Potential
Kinetic
Potential
Kinetic
Kinetic
kinetic energy
Here are the types of mechanical energy contained in each scenario:
A Car traveling at 100 mph along a flat road - Kinetic Energy (KE)
A rubber band that has been stretched - Potential Energy (PE)
A bowling ball rolling down a lane - Both Kinetic Energy (KE) and Potential Energy (PE)
A piano lifted to a second-story window - Potential Energy (PE)
A snowboarder jumping off a ramp - Both Kinetic Energy (KE) and Potential Energy (PE)
An airplane traveling at 30,000 feet and at a speed of 450 mph - Both Kinetic Energy (KE) and Potential Energy (PE)
To determine which type of mechanical energy an object possesses, we need to understand the definitions of kinetic energy and potential energy.
1. Car traveling at 100 mph along a flat road - This car has kinetic energy (KE) because it is in motion.
2. Rubber band that has been stretched - This stretched rubber band has potential energy (PE) because it possesses stored energy due to its stretched position.
3. Bowling ball rolling down a lane - This bowling ball possesses both kinetic energy (KE) because it is in motion and potential energy (PE) due to its position above the lane (as it is raised above the ground level).
4. Piano lifted to a second-story window - The piano in this scenario possesses potential energy (PE) because it is raised above the ground, and it does not possess kinetic energy since it is not in motion.
5. Snowboarder jumping off a ramp - The snowboarder possesses both kinetic energy (KE) because they are in motion and potential energy (PE) due to their elevated height on the ramp before jumping off.
6. Airplane traveling at 30000 feet & at a speed of 450 mph - The airplane possesses both kinetic energy (KE) because it is in motion and potential energy (PE) due to its elevated altitude.
In summary:
- Things in motion possess kinetic energy (KE).
- Objects at elevated positions or in a stretched state possess potential energy (PE).
- Some objects can possess both kinetic energy (KE) and potential energy (PE) simultaneously, depending on their motion and position.