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Motion
Forces
Newton's Laws
Energy
Work and Power
100
This is the rate of change of the velocity of an object
What is acceleration
100
There are this many types of friction
What is three
100
According to Newton's first law, an object will stay at rest unless acted on by this kind of force
What is an unbalanced force
100
Objects generally have one of these two types of energy (2 answers)
What is kinetic or potential
100
These are machines that do work with only one movement
What are simple machines
200
This is the distance and direction of an object’s change in position from the starting point.
What is displacement
200
The force of gravity, or Fg, is also known as this characteristic which is the product of mass and gravity
What is weight
200
Newton's second gives us this equation, relating force, mass, and acceleration
F=m x a, or a = F/m
200
Kinetic potential energy is found using this equation
KE = 1/2(m x v^2)
200
Work can be found using this equation.
W = F x d
300
This includes both the speed of an object and the direction it is traveling.
What is velocity
300
This is the upward force exerted on an object falling through air
What is air resistance
300
This is a property of matter that causes objects to resist changes in motion
What is inertia
300
The potential energy from gravity, or GPE, is found using this equation.
GPE = mgh
300
Power can be found using this equation
P = W/t
400
A passenger elevator travels from the first floor to the 60th floor, a distance of 210 m in 35 s. What is the elevator’s speed?
6 m/s
400
To move an object, you must overcome this type of friction.
What is static friction
400
This will be the reaction force if the action force is 300 N exerted to the right
300 N to the left
400
A 50-kg boy is sitting 2 m from the ground in a tree. How much energy does he have?
GPE = 980 J
400
How much work is done if a group of workers can apply a force of 1000 Newtons to move a crate 20 meters
W = 20,000 J
500
What is the momentum of a car with a mass of 1,300 kg traveling north at a speed of 28 m/s?
36,400 (kg x m) / s
500
As an object is slowed by friction, its kinetic energy is transferred to this type of energy
What is thermal energy
500
What is the force of an object with a mass of 12 kg and an acceleration of 4 m/s2?
48 N
500
What is the kinetic energy of a 4 kg bowling ball traveling at 6m/s?
KE = 72 J
500
1800 J of work is done in 3 seconds. How much power is generated?
P = 600 Watts