Vocabulary
What is a force that is applied to an object over a distance?
work
What is the act of touching: when two things are in contact when they are touching one another?
contact
How many laws does Isacc Newton have that we studied?
three
What is a fulcrum?
a fulcrum is a pivot point of a lever
Newton's Second Law of Motion explains that is you are pushing on an object and you push it twice as hard, what will happen?
it will accelerate at twice the rate
What is a push or pull that is applied to an object?
force
What is a force that opposes the motion of a body across a surface or through a gas or liquid?
friction
What is Newton's first Law?
Newton states that every object will remain at rest until an external force or action changes it.
The force that enables us to remain on the Earth's surface is
gravity
A force will have the most effect on what type of object?
one with the least mass
What is a change in the position of an object compared to another object?
motion
What is the transfer of thermal energy?
heat
What is Newton's Second Law?
Newton states that when a force acts on an object, it will cause the object to accelerate.
The force that causes resistance when rubbing sandpaper on wood is called
friction
The greater the force a baseball player uses to hit the ball with the bat, the what?
greater the distance the ball will travel
position
thermal energy
What is Newton's third law?
Newton states that for every action, there is an equal and opposite reaction.
Two forces that are equal in magnitude push an object in the same direction. The forces are
added together
Two children are sitting on a seasaw. The child that has more weight will likely go down and the child with less weight will likely do what?
go up in the air
What is the energy an object has because of its motion?
kinetic energy
What is the distance traveled per unit of time?
speed
What is inertia?
a tendency to do nothing or to remain unchanged
What is it when a force moves an object over a distance?
work
IF a second person pushes on a wheelbarrow going up a hill the same force as another person who is already pushing it, what happens to the rate of acceleration?
it doubles in acceleration