Vocabulary
The energy of an object that is due to the object's motion
Mass
What are kilograms?
magnets pulling a metal object
What is a magnetic force?
If a ball if it has a mass of 0.50 kg and hits the fielder's glove with a force of 4.9 newtons, what is its acceleration?
What is F=ma?
Consider a rock weighing 100 newtons that is at the top of a 200-meter high hill. What is its potential energy?
What is 20,000 J?
The measure of how far something moves in a given amount of time
What is speed?
Force
What are Newtons?
leaves falling from a tree
What is gravitational force?
What is the speed of a car that takes 1.5 hours to travel 75 kilometers?
What is Speed=distance/time?
If a car with a mass of 4,000 kg is accelerating at a rate of 2 m/s2 and hits a tree, what force does it have?
What is 8,000 N?
A push or a pull exerted on an object in order to change the motion of the object.
What is a force?
acceleration
What is meters per second squared?
kicking a ball
What is a contact force?
Consider a bicycle with a mass of 20 kg traveling at a velocity of 4 m/s. What is its kinetic energy?
What is KE=1/2*m*(v)2?
If a plane travels North for 2.5 hours at a velocity of 100 km/hr, what distance did it travel?
an object’s change in position relative to a reference point
Energy
What are Jules?
sliding down a slide
What is a frictional force?
Consider a rock weighing 100 newtons that is at the top of a 200-meter high hill. What is its potential energy?
What is PE=m*g*h?
If a truck if it is accelerating at a rate of 5 m/s2 and hits a parked car with a force of 16,000 newtons, what is its mass?
What is 3,200 kg?
Acceleration directed toward the center of a circular path
What is centripetal acceleration?
Distance
What are meters?
a boy shutting a door
What is an applied force?
mechanical energy
What is ME=PE+KE
Consider a bicycle with a mass of 20 kg traveling at a velocity of 4 m/s. What is its kinetic energy?
What is 160 J?