Chapter 5: Energy Section 1 Part 2

What is potential energy? Objects receive energy when they are moved or change shape This energy can be _____________ for later use Potential energy (_____): Stored energy resulting from ______________/shape Energy with the potential to do work stored PE position

What types of potential energy exist? Elastic _________________ potential energy (EPE) Some objects are elastic Can be stretched or compressed and return to original shape Examples: ___________________ Rubber band/spring

What types of potential energy exist? When you stretch or squish an object Your energy goes ____ the object The object stores the energy until it is released When it is let go the energy releases into

What types of potential energy exist? To get more EPE you would: Stretch an object ___________ Compress an object ___________ more more

What types of potential energy exist? ______________ potential energy (GPE) When you lift an object off the ground Your energy goes _________ the object The object stores the energy until it is released When it is let go the energy releases Gravitational into

What types of potential energy exist? The amount of GPE depends on 2 things: The _____________ an object is lifted to The _____________ of an object (in Newtons) height weight

What types of potential energy exist? To get more GPE you would: _____________ height _____________ weight increase increase

Kinetic Energy Whether energy is kinetic or potential depends on if it is _______________ or not moving Potential Energy Kinetic Energy

Kinetic Energy Moving objects can do ___________ on other objects So, kinetic energy is the energy the object has due to its _____________ It comes from the Greek word __________, which means ______________ work motion kinetos moving

Kinetic Energy There are 2 things that affect KE KE increases as ___________ increases Example: If a bowling ball and a golf ball were rolling at the same speed, then the ______________ would have more KE because it has __________ mass. mass bowling ball more

Kinetic Energy There are 2 things that affect KE KE increases as ___________ increases Example: If two identical bowling balls were rolling, one at 5m/s and one at 1m/s, then the one rolling at _________ would have more KE because it has __________ velocity. velocity 5m/s more 1m/s 5m/s

Kinetic Energy KE can be calculated KE =____ X ________ X _______ .5 Based on the formula, changing the ________ of an object has a greater impact on KE than changing the _____. .5 Mass (Velocity)2 Velocity mass 1m/s 5m/s