Motion
A place or object used for describing the position or motion of a person. Usually slower or not moving at all.
What is reference point?
something that makes work easier.
What is simple machines?
This increases as mass increases.
What is gravitational force?
energy that's possessed by an object due to its motion or due to its position.
What is mechanical energy?
For every reaction there is a equal or opposite reaction.
What is newton's third law?
The rate at which velocity changes.
What is acceleration?
When you use at least two simple machines to get work done.
What is a compound machine?
factors that affect the amount of gravity?
What are mass and distance?
An object can store energy as the result of its position.
What is potential energy?
A force that resists motion between two surfaces that are in contact.
What is friction?
Overall rate of speed at which an object moves; calculated by dividing the total distance and total time.
What is average speed?
Crowbar is an example of a _____ class lever.
What is first class lever?
measure of the gravitational force on an object.
What is weight?
An object that has motion, whether it is vertical or horizontal motion.
What is kinetic energy?
The acceleration of an object is in the same direction as the net force on the object.
What is newton's second law.
Velocity is defined as the rate of change of this with time
What is displacement?
Simple machines use _____ to make work easier.
What is force?
What two properties determine the strength of gravity.
What is mass of an object, and distance between objects?
The quantity work has to do with a force causing a displacement.
What is power?
units used for force, energy, work, and weight.
What are joules?
When an object changes position over time in relation to a reference point.
What is motion?
Two inclined planes placed back to back.
What is wedge?
It states, that all objects in the universe attract each other through gravitational force.
What is the law of universal gravitation?
The applied force, normal force, tension force, friction force, and air resistance force.
What is external forces?
A driver or passenger in a moving car who isn't wearing a seat belt will be thrown forward when the car suddenly stops because he remains in motion.
a.) Newton's first law
b.) Newton's second law
c.) Newton's third law
What is Newton's first law?