Potential and Kinetic Energy

A scientist? kinetic energy noun the energy of motion The kinetic energy of falling water can grind wheat into flour, saving human efort.

Why is Earth’s gravity the most obvious to us? gravity noun extreme or alarming importance; seriousness When might the gravity of a situation cause a bystander to intervene? inertia noun the property of matter by which things continue their current motion (either going straight at the same speed or staying still), unless a force acts upon them More massive things tend to have more inertia.

Can you think of other examples? friction noun the force slowing the motion of objects due to interactions along their surfaces Do you think there is more friction with a steel wheel on a train...

...on a train track or with a rubber tire on asphalt? friction noun a conflict between people or personalities Describe a situation that might cause friction between two students. momentum noun the quantity of motion of a moving body (mass x velocity) How does a roller coaster’s momentum enable it to climb hills and complete loops? momentum noun...

...a conflict between people or personalities Describe a situation that might cause friction between two students. momentum noun the quantity of motion of a moving body (mass x velocity) How does a roller coaster’s momentum enable it to climb hills and complete loops? momentum noun a driving force in a process If you fell behind in a competition,...

...Explain a situation in which velocity changes even though speed stays constant. acceleration noun the rate of change of velocity per unit of time A roller coaster train accelerates as it descends.

...yourself to gain enough momentum for a comeback? velocity noun the speed in a certain direction Explain a situation in which velocity changes even though speed stays constant. acceleration noun the rate of change of velocity per unit of time A roller coaster train accelerates as it descends.

Can you think of other examples? friction noun the force slowing the motion of objects due to interactions along their surfaces Do you think there is more friction with a steel wheel on a train track or with a rubber tire on asphalt? friction noun a conflict...

Why? accelerate verb to gain speed; to make something happen faster Name some technologies that help accelerate processes in your daily life. gravity noun a force that acts between all masses, pulling them together Everything that has mass has a gravitational field.

potential energy noun the energy an object has because of its relative position What objects around you have potential energy? potential noun possibility, such as talent or skill that may be developed later Do you have the potential to become an athlete?

potential energy noun the energy an object has because of its relative position What objects around you have potential energy? potential noun possibility, such as talent or skill that may be developed later Do you have the potential to become an athlete?

A scientist? kinetic energy noun the energy of motion The kinetic energy of falling water can grind wheat into flour, saving human efort.

Can you think of other examples? friction noun the force slowing the motion of objects due to interactions along their surfaces Do you think there is more friction with a steel wheel on a train track or with a...

Why is Earth’s gravity the most obvious to us? gravity noun extreme or alarming importance; seriousness When might the gravity of a situation cause a bystander to intervene? inertia noun the property of matter by which things continue their current motion (either going straight at the same speed or staying still), unless a force acts upon them More massive things tend to have more inertia.

Can you think of something else powered by kinetic energy? kinetic adjective relating to motion Kinetic works of art, such as mobiles, are very popular.