grade 6

some of the types of electric lamps are

• light bulb

• fluorescent lamps

• all of the above

the simple electric circuit consists of ..

• battery

• lamp

• connecting wires

• all of the above

the electric lamps are connected in the house in series

• true

• false

... is considered from the third class lever

• fish hook

• nutcracker

• see saw

the lever is a resistance force that rotates on a fixed point called fulcrum

• true

• false

the scientist who invented the light bulb is thomas edison

• true

• false

the electric lamp converts electric energy into .....energy

• kinetic

• light

• potential

when the electric lamp connected in the house in parallel

• the light intensity decrease

• the light intensity increase

• the light intensity does not change

the distance from fulcrum to effort force

• force arm

• resistance arm

• no correct answer

the second class levers do not conserve effort

• because force arm is longer than resistance arm

• because force arm is smaller than the resistance arm

• no correct answer