Force & Work
If you push a dog and it doesn’t want to move this is what’s missing for work to be done
What is displacement?
this simple machine can move the point at which a force is applied and may also change the magnitude and direction of the force
lever
Energy associated with position
What is potential energy?
The kinetic energy of a 5kg mass traveling at 6m/s
What is 90 joules?
Transfer of heat between two objects in contact
What is thermal conduction?
Made by Newton, the second law describes acceleration as being this to the force that is applied on it and inversely proportional to its mass
What is proportional?
this simple machine change the direction in which the force is applied what machine is?
wheel
Energy that holds atoms together?
What is nuclear energy?
The gain in potential energy of a 200 kg mass, 1.5m above the ground
What is 300 joules?
Transfer of heat from one place to another by the movement of fluids
What is convection?
This is the work done by a man pushing a car 50m by applying 800N
What is 40,000 J?
this simple machine changes the point where a force is applied, and may also change its magnitude and direction what machine is it?
pulley
Potential energy stored within the chemical bonds of an object
What is Chemical Potential Energy?
The kinetic energy of a 10kg mass traveling at 4m/s
What is 80 joules?
Amount of average kinetic energy in an object
What is temperature?
This is the amount of work done by the groom as he carried the bride out of the church at the ending of the wedding
What is 0?
this converts rotational motion to linear motion, and a rotational force to a linear force
screw
Mechanical energy from the wind is harnessed by wind turbines in order to create this
What is electrical energy?
The energy that possesses due to its motion
What is kinetic energy?
What is the temperature which fahrenheit and celsius meet?
What is -40
The main villain in Despicable Me knows that this has both magnitude and direction
What is a vector?
Screws, wheels, levers, pulleys, wedges are examples of
Screws, wheels, levers, pulleys, and wedges are all examples of simple machines. They are all machines that have few (or no) moving parts and produce work by modifying motion and force
Kinetic energy from a moving car possesses this type of energy
What is mechanical energy?
Point at which a pendulum has the minimum amount of potential energy
What is equilibrium point?
The temperature at which all molecular motion stops
What is absolute zero?