1 misc./ 4 Newton
The point where a lever turns or pivots.
fulcrum
Stored energy is __________ energy.
potential
Any object that makes work easier.
machine
Jude usually runs at about 6 mi/hr is an example of __________.
speed
A fixed unmoving object or location used to determine if an object has changed position.
reference point
Determined the three laws of motion. First and last name.
Sir Isaac Newton
Energy due to motion.
kinetic energy
Combines two or more simple machines.
compound machine
Ruthie increased her speed and won the race is an example of __________.
acceleration
The change of an object´s position.
motion
Newton´s 1st Law - An object tends to stay at the same velocity unless another force causes it to __________.
change
The ability to make something move.
mechanical energy
Force applied to a simple machine.
Avery´s dad drove East at 65 mi/hr is an example of __________.
velocity
The resistance to a change in motion.
inertia
Newton´s 2nd Law - Force is equal to an object´s __________ and the __________ of the object.
mass, acceleration
A car travels at 100 km per hour for 4 hours. How far have they traveled?
400 km
Force that works against the effort.
resistance force
The speed an object travels over the length of an entire trip.
average speed
Determined by the mass and velocity of an object.
momentum
Newton´s 3rd Law - When one object exerts a __________ on a second object, the second object reacts by exerting an equal __________ back on the first object.
force, force
If you lift an object that weighs 25 newtons upward 4 meters, how much work have you done?
100 joules
A car traveled 100 km in 2 hours. What was the average speed of the car?
50 km/hr
The speed of an object at any one moment.
Instantaneous speed
The decrease in effort that is needed to move an object.
mechanical advantage