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?
My mass would change if I went to a different planet. True or False
What is false?
Definition of Air Resistance Force (a.k.a. drag)
A force that opposes the motion of an object through the air.
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.
What is electrical force?
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
Definition of Applied Force
A force exerted on an object to INITIATE or CHANGE its motion
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?
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.
Definition of Spring Force
A RESTORING FORCE exerted by a DEFORMED spring (either stretched or compressed) that attempts to return the object to its original position.
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?
Johnny pushes a car, trying to move it, but finds it will not budge. What force is he trying to overcome?
What is inertia?
Weight is the downward force of an object as gravity pulls on the object's mass.
What is true?
Definition of Tension Force
A PULLING FORCE transmitted through a flexible object when it is pulled from OPPOSITE ends.
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?
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.
Definition of Buoyant Force
Upward force exerted by a fluid that opposes the weight of an immersed object.