Forces I
A push or pull on an object
What is a force?
All of the forces applied to an object
What is the net force?
What is friction?
The capacity to do work or cause change
What is energy?
The stored energy an object has due to its position in a gravitational field
What is gravitational potential energy?
The unit for force
What are Newtons?
When the net force equates to zero
What is a balanced force?
A 15 N force acts on a 10 kg object. What is its acceleration?
What is 1.5 m/s/s
The energy of motion
What is kinetic energy?
KE = 1/2 * m * v^2
What is kinetic energy?
When an object exerts a force on a second object, the second object exerts an equal and opposite force onto the first object
What is Newton's Third Law of Motion?
When the net force is a non-zero number
What is an unbalanced force?
Find the force of a 30 kg object traveling at 2 m/s/s/
What is 60 N?
The stored energy an object has due to its position, state, or configuration
What is potential energy?
The two factors that give an object more gravitational potential energy
What are height and mass?
GPE = mass* gravity * height
How forces are described
What are strength and direction?
An object at rest stays at rest and an object in motion stays in motion unless acted on by unbalanced forces
What is Newton's First Law of Motion?
A 430 kg object moves at 16 m/s/s/. What is its force?
What is 26.875 N?
Determines the amount of potential energy in a system
What are forces?
Gravitational constant
What is 9.81 m/s/s/?
Two interacting forces that act on different objects
What is a force pair?
The equation to find acceleration according to Newton's Second Law
What is acceleration equals force divided by mass
a = F / m
A 90 N force acts on a 300 kg object. What is its acceleration?
What is 0.3 m/s/s/
The total energy energy of an isolated system always remains the same
What is the Law of Conservation of Energy?
What is the kinetic energy of a 10 kg object with a mass of 5 kg?
What is 125 Joules?