Potential and Kinetic Energy
The energy stored in an object.
What is Potential Energy?
When an object is not sitting still.
What is motion?
A push or a pull.
What is a force?
A student rolls a ball on the ground. What causes the ball to slow down and then stop?
Friction on the ground
Which tool measures distance?
A Thermometer
B Balance
C Rain gauge
D Meterstick
D Meterstick
The energy an object has when it is in motion.
What is Kinetic Energy.
A force that is created when 2 surfaces try to move against each other. This force OPPOSES motion.
What is friction?
Using force to move an object.
What is work?
Tom is riding his bike. He has to put on the brakes when a car pulls out. How do brakes reduce the bikes motion?
They reduce all of the forces on the bike.
The sum of forces acting on an object.
What is net force?
Potential or Kinetic?
Windmills
What is Kinetic Energy?
Which of the following describes speed?
A The car finished the race in 12 minutes.
B The car traveled 11 kilometers in 12 minutes.
C The car crossed the finish line.
D The car did not make it to the finish line.
B The car traveled 11 kilometers in 12 minutes.
A force to move something away.
What is a push?
What does friction create?
heat
What is true of an object at rest?
A It has multiple forces acting on it that add to zero net force.
B It is being held by a force that opposes motion, such as gravity.
C It is resting on a smooth surface with no friction.
D It is experiencing forces that do not sum zero net force.
A It has multiple forces acting on it that add to zero net force.
Potential or Kinetic.
A Child sitting at the top of a slide.
What is Potential Energy?
Jax is swinging and his dad gives him a push. How will his motion change?
A stop swinging
B accelerate
C decrease in speed
D stay the same
B accelerate
Give 3 examples of forces in real life.
Student responses including the terms push and pull.
Rougher surfaces have more or less friction?
More
The person who discovered laws of motion that still apply to the things you do, see, and feel every day.
Who is Isaac Newton?
Two objects with different masses are placed on the same shelf. Which object contains more energy?
The object with more mass.
To describe this car’s motion, a student should use its — (two answers)
direction and speed
The combination of all forces acting on an object is ______ ___________.
net force
Give 2 examples of an object experiencing less friction and 2 examples of an object experiencing more friction.
Student responses related to smooth and rough surfaces.
When a truck collides with a car, the energy from the truck will transfer to the car. That energy transfer can change the car’s —
**Hint- think about motion...
Speed and Direction