Explanation:
Table A: Calculation of Density for Regularly Shaped Solids
Table tennis ball Golf ball
"Mass
(g)"
Diameter (cm)
Radius (cm)
Estimated volume (cm3)
Estimated density (g/cm3)
"Prediction of buoyancy
Circle one."
"Observation of buoyancy
Circle one."
Initial volume of water (cm3)
Final volume of water (cm3)
Change in volume (cm3)
Calculated density (g/cm3)
Error (%)
Answer:
Dynamo
Explanation:
As we all know, there are dynamos in bicycles. When we paddle the cycle, the wheels of the cycle rotates by generating kinetic energy. When the wheels rotate, the dynamo starts to rotate. This makes the motor inside the dynamo rotates and generate electrical energy.
Answer:
A typical white dwarf is about as massive as the Sun, yet only slightly bigger than the Earth.
Explanation:
A typical white dwarf is about as massive as the Sun, yet only slightly bigger than the Earth.
White dwarfs are one of the densest elements in the universe, surpassed only by neutron stars and black holes. They can be considered as medium mass stars that fuses hydrogen into helium
Answer:
resistance of a conductor increases
Explanation:
The resistance of conductors is directly proportional to the temperature of the conductor. This implies that when the temperature of the conductor is increased, the resistance of the conductor increases likewise.
This is applied in the resistance thermometer. Resistance thermometers are useful for accurate temperature measurements at very high or very low temperatures.
