Forces and Motion 1
The bottom of the tallest hill on a roller coaster.
What is the spot where the most kinetic energy is found?
A push or pull
What is a Force?
Forces that cause a change in motion are called..
unbalanced forces
True or False: All objects with mass have a small amount of gravity
What is true?
Heat is the flow of _______ ______________
What is thermal energy?
The particles of the substance begin to separate and the motion of them will increase when this is added.
What is thermal energy?
Unit of Measurement for Force
What is Newton (N)?
What is the difference between potential and kinetic energy?
potential energy is stored energy and kinetic energy is the energy of motion
A type of magnet in which the magnetic field is produced by an electric current.
What is an electromagnet?
Force= mass x acceleration
What is Newton's 2nd law?
Energy cannot be created nor destroyed, Just transformed
What is the Law of Conservation of Energy?
A force between two surfaces which prevents them from sliding past one another. A force that acts in the opposite direction of the traveling object
What is friction?
Student A is pushing a box with a force of 20N to the right. Student B is pushing with a force of 25 N to the left. What is the net force of this situation
5 N to the left
The way magnetic poles interact with each other.
What are opposites attract and same poles repel?
How are height and potential energy related?
Greater height = greater PE
Energy cannot be created or destroyed but it can be _____________ or _________________
transformed or transferred
An object that is accelerating can be
described as a(n) _____________ force.
What is Unbalanced?
Forces on an object that are equal in size and opposite in direction, cancelling each other out are called...
Balanced Forces
Definition of energy
What is the ability to do work?
When going on a roller coaster, at which point do you have the MOST potential energy?
At the top of the highest hill
Iron, nickel and cobalt.
Which 3 metals are naturally magnetic?
A roller coaster utilizes this as the stored energy of position.
What is Gravitational potential energy?
Student A is pushing a box with a force of 10 N to the left. Student B is pushing with a force of 20 N to the right. Will the box move?
What is Yes to the right with a force of 10 N!
A large rock is motionless on a flat sidewalk. Which statement best explains why the rock remains motionless?
A) There are no forces acting on the rock.
B) The only force acting on the rock is directed toward the sidewalk.
C) The forces acting on the rock are all balanced.
D) The sidewalk exerts an unbalanced force on the rock.
What is answer C?
This is a tendency for an object to resist a change in motion.
What is Inertia?