Exam Science Second Term Junior6 Part2

The electric wires are made of………………(choose)

The electric lamp contains……………gas

Which of the following is from the precautions with electricity?…………………..(choose)

The filament of the light bulb is made of tungsten because it has……………….(choose)

(choose)……………….is a bad conductor of electricity

In the decorative lights, if one or more lamps burn out the other lamps do not turn off, because……………(choose)

The inner surface of the tube of the fluorescent lamp is covered with……………(choose)

The electric shock may cause………………(choose)

The scientist who invented the light bulb is…………..(choose)

Materials that don’t allow the flow of electricity through them are called……………..(choose)

Which of the following gases is found in the fluorescent lamp but not in the light bulb?………………….(choose)

(choose)………………is one of the dangers of electricity that occurs as a result of the passage of the electric current through the human body

In houses,…………………(choose)

Electric wires must be covered with………………(choose)

(choose)………is a rigid bar that rotates around a fixed point called fulcrum

resistsnce force lies between the effort and fulcrum in the…………..(choose)

all the following levers are examples of the first class levers sxept …………(choose)

the law of lever states that………….(choose)

which of the following from the second class lever?

the firce arm is some times equal to theresistance arm in the ………class lever\s

when the arm of force is longer than the arm of resistance the effort force is ………the resistance

(Choose)……..is the lever that increases the speed of obgects