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What will be the work done is power used is 600W in 5s.
3000J
What will be the Potential energy if: h = 9m , m= 40kg ,g=10
Potential energy = 3600J
How much will be the density in SI unit if the density of object is 8g/cc?
8000kg/cubic metre
What will be the conversion of energy hydropower
Mechanical to electrical energy
Which exerts more pressure a blunt knife or a sharp knife?
Sharp knife
What will be density if m is 4kg and volume is 16 cubic metre
0.25 Pa
Which energy does the body possess?
Potential Energy
If density of copper is 245 g/cc and aluminium foil is 0.68 g/cc. Which of them will float in water?
Aluminium foil.
Which energy does the body possess?
Kinetic Energy
Which position shows Least value of Kinetic Energy?
Position C
Which position shows maximum Potential Energy?
Position B
Which position shows maximum Kinetic Energy
Position A
If Shashank, climbs the stairs in 20 s and does a work of 8000J. How much power did he spend?
Power = 400 W.
How much pressure will be exerted in by a brick of thrust 600 kgf is placed on its sides which measure 12 cm by 10cm.
P = F/A = 600/120 = 5kgf/sq.cm
What will be the Potential energy if: h = 8m , m= 40kg ,g=10
Potential energy = 3200J
What will be the Kinetic energy if : m = 14kg and v = 6 m/s
Kinetic Energy = 252J
What will be the Kinetic energy if : m = 13kg and v = 5 m/s
Kinetic Energy = 162.5J
Which one exerts a greater pressure?
Heels
Identify the apparatus
Eureka Can
Identify the apparatus
Measuring cylinder
Is work done in the following case? Why?
Yes. As person has moved from one point to another.
Is work done in the following case? Why?
Yes. As when a person walks there is force as well as displacement of the person.
Is work done in the following case? Why?
No. As for Work to be done there should be displacement.
Is work done in the following case? Why?
No. As for Work to be done there should be displacement.
State the energy conversion in the following case
Chemical to Light Energy
State the energy conversion in the following case
Chemical to electrical
State the energy conversion seen in the following case
Sound to Electrical
State the conversion seen in the following case
Light energy to Electrical energy
State the SI unit of Density
kg/ cubic metre
State the SI unit of Pressure
pascals or newton/sq. Metre
State the SI unit of Thrust.
newtons