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Demonstrating how the angle of the sun's rays changes from day to day at the same hour
Cut a 1-cm round hole in a piece of paper or cardboard. Place this in a south window of your classroom where the sun's rays will shine by the hole and strike a piece of white paper on the floor, the table or window sill. Draw the outline of the spot where the beam of light strikes the paper. Write the date and hour inside the outline. Repeat this on succeeding days at exactly the similar hour
Draw a free-body diagram for a goldfish that is motionless in the middle of a fish bowl. Recognize the forces acting on the fish. Show the direction of the net force on the f
Q. What are leptons? Give examples. Leptons: Leptons are lighter particles having mass equal to or less than about 207 times the mass of an electron except neutrino an
The conductivity of an extrinsic semiconductor (A) Decreases with temperature. (B) Increases with temperature. (C) Remains constant with temperature. (D) Decrea
A simple rotation machine Secure a breast-drill or hand- drill like as the one shown in the diagram. Clamp a small screw eye or cup hook in the chuck of the drill. Join a 30 cm
MOTION EXAM WITH ANSWERS
An aquarium for larger water animals A glass aquarium 50 cm by 25 cm is of useful size. Old accumulator cells are suitable, but the glass is not very obvious. To prepare l
Motion of simple pendulum. Simple Harmonic Motion: It is a type of vibratory motion in which body has an immediate acceleration whose magnitude is directly proportional to the
The effects of open circuits: An open circuit is essentially a break in the circuit. An open circuit in a series circuit will prevent the flow of current through the circuit. W
State the Working of UJT Make circuit arrangement as demonstrated in fig.(c), where UJT is represented by its equivalent circuit comprising resistances R B1
Charging an Electrophorus by Induction Using a Negatively Charged Object A general physics demonstration includes the charging of an aluminum pie plate through the procedure of
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