GCE PHYSICS PRACTICAL ANSWERS 2020

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*2020 WAEC GCE ALTERNATIVE TO PRACTICAL ANSWERS VERIFIED EXPO*

*NUMBER ONE*

1bi) •The first condition is that the net force on the object must be zero for the object to be stable

•If net force is zero, then net force along any direction is zero.

1bii) : (i) Magnitude of force applied.

 (ii) Distance of line of action of the force from the axis of rotation.

*Number 3*

*3B*

 *SPECIFIC HEAT CAPACITY:* of a substance is defined as the quality of heat supplied or required to raise the temperature of a unit mass of 1kg through a unit rise in the temperature of 1kelvin.(K)

3a.( IX.)

1. The reading should be taken when the meter is steady.

2. Large current or voltage must not be passed into the meter because it might damage it.

3. The calorimeter must be properly lagged to prevent heat loss.

 *Choose any 3

: 3B.

 *SPECIFIC HEAT CAPACITY:* of a substance is defined as the quality of heat supplied or required to raise the temperature of a unit mass of 1kg through a unit rise in the temperature of 1kelvin.(K)

[ 1bi. Wide base

Low center of Gravity