Applied
Friction
Gravity
Magnetic Force
Electric Force
100
True or False: Pushing a keyboard is applied force
True
100
What is friction?
A surface rubbing against another in the opposite direction
100
What does gravity do to objects/people?
It keeps the objects/people down on Earth's surface.
100
What's an object that causes magnetic force?
Magnets/Metal
100
What is needed for an electric force?
Two electrically charged particles.
200
Give an example of applied force
Answers may vary.
200
True or False: There is always friction for an action (even standing still)
False
200
A skydiver is dropping from the sky and starts to get closer to the surface. Is there gravity?
Yes
200
What usually attracts to magnets?
Metal (nails, paperclips, coins, etc.)
200
Is electric force a contact or non-contact force?
Non-contact?
300
Is this example a push or pull action?
Push actionÂ
300
What does friction do to an object/person?
Slows it down.
300
Why does your weight on the moon less than the weight on Earth?
There is less gravity.
300
What will happen when these two magnets start to get closer to each other?
They will repel
300
What does electricity create?
An area of electric force called electric field.
400
Which of Newton's Laws of Motions include applied force?
All of them include applied force.
400
There are two carts on two different types of floor: concrete and metal. Which one would have more friction?
Concrete floor.
400
Which of the following have the greatest gravitational pull: the Sun, a car, Earth, yourself.
The Sun has the greatest gravitational pull because it is a larger object compared to the rest.
400
What do magnets produce?
An area of magnetic force called magnetic field.
400
What is measured in newtons?
Force
500
What are the types of applied forces? (at least 3)
Push, Pull, Tension, Spring force, Friction
500
What are frictions exerted by liquid and gases.
Fluid friction/drag.
500
If we had the same amount of gravity as the moon, what would happen?
We would weight less and would not stay on the ground at all times and float. Gravity's pull on objects/people would be less than it is now.
500
Where is the force of attraction the strongest on a magnet?
At the poles.
500
Give an example of electric force.
Answers may vary.