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Forces and electricity - Coggle Diagram
Forces and electricity
Mass and weight
The difference between mass and weight
Mass
The amount of matter in an object
Measured in kilograms
Measured with a scale
Weight
The force of attraction an object caused by gravity
Measured in newtons
Measured with a forcemeter
Gravity affects weight
Mass does not changes according to location
Weight changes according to location
Depends on gravity
The smaller the force of gravity, the lower your weight will be
The effects of forces
Make an object move
Slow down a moving object
Stop a moving object
Change the direction an object is moving in
Change the shape of an object
Floating and sinking
Forces acting on objects when they float or sink
Weight
Upthrust
Causes water to be displaced or pushed out of the way
How do we know whether an object will float or sink?
If the mass of the object is less than, or equal to, the mass of water displaced by upthrust, the object will float
If the mass of the object is greater than the mass of water displaced by upthrust, the object will sink
Different circuits and circuit diagrams
Circuit diagrams
Conventional symbols
Series circuits
The electric current has only one path
If one lamp is removed from a series circuit, the other lamp will not light up because the circuit is broken
Parallel circuits
Has more than one path
Each lamp has its own path
If one lamp is removed, the other lamp will remain lit
The remaining lamp will shine the same brightness as before