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Interaction Through the Application of Forces - Coggle Diagram
Interaction Through the Application of Forces
Types of forces
Non-contact forces (Indirect)
Gravitational force
It is the force that attracts objects to planets. This force affects the Earth, the moon, and the planets in the solar system
Examples:
:check:Weight
:check:Ocean tides
Electrostatic force
We can feel electrostatic forces when we use a transparent sheet of plastic to wrap a book. The hair on our arms and the dust on the table are attracted to the plastic wrap because of electrostatic forces
:check:Unlike charges/poles attract each other
:green_cross:like charges/poles repel each other
Magnetic forces
The forces exerted by a magnet on magnetic materials such as iron and steel
Contact forces (direct)
Friction
Contact force of two materials against each other
Walking
Writing on paper
lighting a fire
Parachuting
Measuring force
Compression spring balance to measure
Extension spring balance to measure
Effects of Forces
Opening a window or a door
Pressing a button in a lift
Squeezing a tube of toothpaste
Turning on the tap
Effects of forces on the size or shape of an object
Kneading a lump of plasticine
Moulding a lump of clay
Turning effect of forces on an object
opening a door by turning the door knob
example of turning effect of forces--levers
pulling out a nail using a crowbar
lifting a fishing rod upon catching a fish
applying a upward force pon the wheelbarrow
Pressure
Pressure is the amount of force acting perpendicularly on a unit area
To increase pressure:
:check:Increase applied force
:check:Decrease contact area
Atmospheric pressure: The higher an object is above sea level, the lesser the pressure
Pressure in liquid: The deeper an object is submerged, the higher the pressure
Formula: Pressure equals to force divided by area