Scenarios
Jack pushes a desk across the floor towards Jill and challenges her to balance the force. In order to do so, Jill....
What is applies the same force in the opposite direction?
A push or a pull.
What is a force?
During a game of tug of war, two opponents pull on a rope. This type of force is applied to the rope.
What is tension?
KingKing is pushing a toy car across the floor. What force makes the car move?
What is pushing force?
My mass would change if I went to a different planet. True or False
What is false?
Johnny tries to lift a 5 gallon bucket of paint but finds it is too heavy to lift. What force is Johnny trying to overcome?
What is gravity?
A magnet below a table is used to slide a paper clip across the top of the table. They do not touch because magnetic force is an example of this type of force.
What is a non-contact force (a force acting at a distance)?
The attractive or repulsive force between charged objects. Attract vs. repel
What is electrical force?
Paras is riding a bike, but it slows down when she stops pedaling. What force is making the bike slow down?
What is friction?
My weight would stay the same if I traveled to a different planet that had a different gravitational force than Earth.
What is false - your weight would CHANGE
It is a stormy and windy day! As you walk, the wind is strong enough to almost knock you off of your feet. What force is acting against you?
What is air resistance?
Fill in the blank. As the ____ between two objects increases, their gravitational attraction decreases.
What is distance?
This force pulls you towards the center of an object.
What is gravity?
Ganeev kicks a football, and it eventually stops rolling on the grass. Why does the football stop, and what force is involved?
Friction between the ball and grass slows it down)
Objects at rest tend to start moving without a force being applied.
What is false - Objects at rest tend to stay at rest until acted upon by a force.
A skateboarder, travelling at 20 mph puts his foot down against the ground. He quickly loses speed. What force causes this change in acceleration
What is friction?
The amount of matter within an object.
What is mass?
I drop Grace and a feather at the same time. Grace hits the ground fast! The feather takes longer. Why?
What is the air resistance prevents the lighter feather from falling fast like Grace. :)
KingKing is trying to lift a heavy box, but it feels hard to move. What force is pulling the box down, making it difficult for him to lift?
Gravity
Weight is the downward force of an object as gravity pulls on the object's mass.
What is true?
The same amount of force is applied in two situations. First, it is applied to lift a 40 pound bag of sand. Second, it is applied to toss an apple into a cart. Using the same amount of force on each, which object would accelerate more quickly?
What is the apple?
An objects ability to stay at rest or resist force.
What is inertia?
An attractive or repulsive force exists in a field between a north and south pole.
What is magnetic force?
Paras and Ganeev are playing tug-of-war with a rope. Paras pulls one way, and Ganeev pulls the other. If they both pull with equal force, why doesn’t the rope move, and what is this balance of forces called?
The forces are balanced, so the rope doesn’t move
In order to win a game of tug of war, you need to balance the force of your opponent.
What is false - You need to unbalance the force and overcome your opponents force.