Les 1 = Causes of Motion
A push or pull is the definition for this word.
What is a force?
It tells you how fast an object is moving at any given point.
What is instantaneous speed?
This term is another name for Newton's First Law of Motion.
What is Inertia?
Force equals mass times this quantity.
What is acceleration?
Newton determined that for every action there is an equal and opposite force called this term.
What is a reaction?
The force of attraction that exists between any two objects is called this.
What is gravity?
While one refers to the speed at any given moment, the other refers to the average rate at which the distance is covered.
What are instantaneous speed and average speed?
In science, this is the statement that describes events or relationships that exist in nature.
What is a law?
The truck uses more force to move when it is full than when it is empty because the full truck represents more of this quantity.
What is mass?
If two pieces of paper that is the same size and weight are dropped, this would be the way to make one fall faster.
What is crumple it to create less air resistance?
This measurement of the amount of matter in an object remains constant no matter whether it is measured on Earth, the Moon, or in outer space.
What is mass?
This measurement uses average speed as well as the direction the object is moving to describe a moving object.
What is velocity?
Given no unbalanced forces acting upon it, this is what happens to a moving object.
What is continue to move in a straight line at a constant speed?
When an object is pushed by a boy, it will always move in this direction.
What is the direction of the boy's push or the direction of the force that acts upon it?
What is the fact that our foot is pushing slightly backward against the floor?
When an object stays at rest or maintains a constant speed the net force is this number.
What is zero?
What is acceleration?
This force is the unbalanced force that makes the rolling ball stop.
What is friction?
Aristotle told us that the heavier an object was, the faster it would fall to earth. This scientist proved him wrong.
Galileo showed that all objects fall at the same rate. The objects with a greater mass require more inertia to make them move.
Using Newton's Third Law of Motion, describe the forces acting on a bumper car.
What is action and reaction? As one car hits another, both are pushed backwards as they are approximately the same mass.
Tides are evidence of this phenomena's effect on Earth.
What is gravity or the gravitational pull of the moon?
The term for the "bee line" or "as the crow flies," it is a measure of the shortest distance between two points and the direction traveled.
What is displacement?
These are the three kinds of motion.
What is straight line, circular, and vibrational?
This force can make objects fall at different rates.
What is air resistance?
These are the forces that are acting on a book lying still on a table.
What are gravity pulling the book toward the earth and the table pushing up on the book?