Motion
The difference between a scalar and vector quantity
Vectors have direction
The ability to do work
Energy
The tendency of matter to resist the change in motion
Inertia
Moving inertia
Momentum
What stays the same in a parallel circuit
voltage
the change in velocity over time for an object
Acceleration
If the potential energy at the top of the hill is 4000 J, then then the total mechanical energy in the system is _____.
4000 J
Force of attraction between 2 objects with mass
Gravity
Change in momentum
Impulse
A closed path for electricity to flow
circuit
A negative acceleration means
a. object is moving backwards
b. object is speeding up
c. object is slowing down
c. object is slowing down
Energy held in the nucleus of an atom
Nuclear energy
A 1200 kg car is moving with constant velocity of 25 m/s. What is the net force acting on the car?
Zero- you cannot have a net force without there being an acceleration
When an impulse acts on a object it will change the ______ of the object
velocity
The push that gets electrons to flow through a conductor
voltage
An object moving with a constant velocity has an acceleration of ____. (fill in the blank)
zero
PE + KE =
Total Mechanical energy
There was net force of 500 N acting on the motorcycle when Beth applied 200 N of braking force. What is the frictional force?
700 N of frictional force
The purpose of the mat below the gymnast is to _____ the force and _____ the time it takes to impact
decrease, increase
A magnet created from a current carrying wire and a conductive metal
electromagnet
What does a curved line on a distance vs time graph represent?
Acceleration
Calculate the total energy for a 60 kg skater moving downhill with a velocity of 10 m/s 6 meters from the bottom
6528 J
Calculate the normal force on a 10 kg box sitting on a table.
98 N- Normal force is equal but opposite the gravitational force (weight)
What is the relationship between momentum and impulse? (include, velocity, force, time, etc)
Find the cost to run a 1200-watt microwave oven, if you make microwave popcorn in 5 minutes.(price per kWh is 13.267 cents)
$1.32