Balanced and Unbalanced?
Net Force
Potential & Kinetic Energy
Gravity
Vocabulary
100
If Jaden pushes on a door with 100N of force and Aislynn pushes in the opposite direction with 100N of force, the door will not move.
Are these forces balanced or unbalanced?
Balanced Forces
100
Ms. Elegante pushes a box with 5N of force. Ms. Garvey pushes the box in the SAME direction with 10N of force.
What is the Net Force on the box?
15N of force
100
As an object begins to move and speed up, Potential Energy _________ while Kinetic Energy _________.
Decreases, Increases
100
Fill in the blank:
Gravity pulls all objects towards the _____________.
Gravity pulls all objects towards the center of the Earth.
100
What is the definition of balanced forces?
What is the definition of unbalanced forces?
Balanced forces are equal and do not cause motion
Unbalanced forces are unequal and do cause motion.
200
If a class plays tug of war and one side pulls with more force, the rope moves.
Are these forces balanced or unbalanced?
Unbalanced Forces
200
If Ms. Byrnes pulls on her desk with 10N of force and ms. Preszler pulls in the OPPOSITE direction with 10N of force, what is the Net Force on the table?
0N. The forces are balanced
200
Potential Energy is determined by an object's ______ and ________________.
Mass; Distance (height) above ground
200
What is the rule for how distance between objects affects gravity?
More Distance = _________ Gravity
Less Distance = _________ Gravity
More Distance = Less Gravity
Less Distance = More Gravity
200
What is the definition of Force?
Force is a push or a pull.
300
Mr. Taylor pushes his shopping cart down the aisle and it moves. Are these forces balanced or unbalanced?
The forces are unbalanced.
300
A student pushes on a cart with 20N of force. A student pushes back in the opposite direction with 10N of force. What is the net force on the cart?
10N of force
300
Kinetic Energy is determined by an object's _____ and _______.
Mass; Speed/Velocity
300
What is the rule of how mass affects gravity?
More mass = ________ gravity
Less mass = ________ gravity
More mass = More gravity
Less mass = Less gravity
300
What is the definition of Net Force?
The Net force is the total amount of force that acts on a an object.
400
If Mr. Pettersen leans on a wall with 15N of force and the wall does not move, are the forces balanced or unbalanced?
Balanced
400
If net forces are 0N, are the forces balanced or unbalanced?
If net forces are more than 0N, are forces balanced or unbalanced?
If 0N, the forces are balanced.
If more than 0N, the forces are unbalanced.
400
True or False: An object with 100% Kinetic Energy will be stationary/not moving.
False
400
Which planet would have the MOST gravitational pull to the Sun based on distance?
Which planet would have the LEAST gravitational pull to the Sun based on distance?
Mercury would have the most because it has less distance (is closer).
Neptune would have the least because it has more distance (is farther away).
400
What is the definition of Normal (Regular) Force?
A force that opposes gravity and keeps objects in place.
500
Describe an example of forces that are balanced.
(Answers will vary)
500
If Ms. Garvey pulls on a rope with 50 N of force and Ms. Stolaruk joins her and pulls on the rope in the same direction with 50N of force, what is the net force on the rope?
100N
500
How does friction affect objects with Kinetic Energy?
Decreases Kinetic Energy; Slows objects down
500
Which planet would have the MOST gravity based on mass?
Which planet would have the LEAST gravity based on mass?
Jupiter would have the most gravity because it has the most mass.
Mercury would have the least gravity because it has the least mass.
500
What is the definition of Bad Parenting?
Bad Parenting is placing your toddler (child) on an abandoned desert road in the middle of nowhere for a photo shoot that will be used in a middle school science lesson. HORRIBLE!!!
