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Thermal expansion
It's sterilised using Methylated spirit
It’s sterilised using Methylated spirit
See lessThermal expansion
Clinical thermometer measure temperature up to 43°c, hot water have higher temperature thus breaking the thermometer
Clinical thermometer measure temperature up to 43°c, hot water have higher temperature thus breaking the thermometer
See lessNewton’s laws of motion
Working on the diagram
Working on the diagram
See lessFree Fall
Due to the rotation of the earth on its axis, we happen to be moving in a circle. Consequently part of the gravitational force of attraction has to provide centripetal force required to keep us moving in that circle and the remaining part of the gravitational force pulls us down to the earth's surfaRead more
Due to the rotation of the earth on its axis, we happen to be moving in a circle. Consequently part of the gravitational force of attraction has to provide centripetal force required to keep us moving in that circle and the remaining part of the gravitational force pulls us down to the earth’s surface. When the speed of the earth’s rotation is increased more of the earth’s gravitational force would be used in providing the extra centripetal force. Our weight which is equal to the difference between the total gravitational force and the centripetal force would be less. If the earth’s rotation is continued to increase, then at a certain critical speed the total earth’s gravitational force would be equal to the centripetal force thus no resultant force to provide weight and therefore we become weightless.
See lessFree Fall
When in free fall, the only force acting upon your body is the force of gravity - a non-contact force. Since the force of gravity cannot be felt without any other opposing forces, you would have no sensation of it. You would feel weightless when in a state of free fall.
When in free fall, the only force acting upon your body is the force of gravity – a non-contact force. Since the force of gravity cannot be felt without any other opposing forces, you would have no sensation of it. You would feel weightless when in a state of free fall.
See lessEquilibrium
On disturbing the ball; its center of gravity is neither raised nor lowered from its original position, but always remains at the same height. Thus its position of the centre of gravity doesn't change.
On disturbing the ball; its center of gravity is neither raised nor lowered from its original position, but always remains at the same height. Thus its position of the centre of gravity doesn’t change.
See lessFluid flow
Bernoulli's effect states that provided a fluid is non viscous, incompressible and its flow is streamline, an increase in its velocity produces a corresponding decrease in the pressure it exerts while Bernoulli's principle states that the sum of the pressure, kinetic energy per unit volume and the pRead more
Bernoulli’s effect states that provided a fluid is non viscous, incompressible and its flow is streamline, an increase in its velocity produces a corresponding decrease in the pressure it exerts while Bernoulli’s principle states that the sum of the pressure, kinetic energy per unit volume and the potential energy per unit volume is a constant.
See lessMachines
By reducing friction e. g oiling or greasing the moving parts of the machine By using movable parts of a machine made of light materials
By reducing friction e. g oiling or greasing the moving parts of the machine
See lessBy using movable parts of a machine made of light materials
Resultant force, F=ma =3000*25 = 75000N
Resultant force, F=ma
See less=3000*25
= 75000N
Transformers
Alternating current (AC) can be easily stepped up to high voltages thereby minimizing power loss
Alternating current (AC) can be easily stepped up to high voltages thereby minimizing power loss
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