State two factors upon which the pressure of a fluid depends.
What is Height or depth, Density or gravitational pull
100
What is the difference between heat capacity and specific heat capacity
What is specific heat capacity is the heat change within unit mass while heat capacity is heat change within the substance.
100
What is the momentum and state its units
Product of mass and velocity measured in kgms-1
100
What is energy and state its units
Ability to do work measured in Jolues
100
What is the temperature if the volume occupied by a gas is zero?
0 kevin
200
If a diver reaches a depth of 20m below the surface of the sea what is the total pressure on him?
If Air pressure is 1x10>5 Pa and density of sea is 1150kgm-3.
What is 330,000Pa
200
These are the two types of transfers required to move heat energy from a liquid to a solid.
What is conduction and convection.
200
What is the momentum combined if the mass of a car is 200kg and the driver 23kg if they are traveling at a speed 5ms-1
What is 1115 kgms-1
200
What is the formula for potential energy?
What mgh
200
What Does charles law state?
Volume is directly proportional to temperature at constant pressure for a fixed mass of gas.
300
A solid cylinder of wood has a cross sectional area of 35m>2 and a height of 40 m and floats when half of its length is submerged in water. what is the weight of the water it displaced if its density is 1000kgm-3
What is 70,000 N
300
A heater supplying energy at a constant rate of 500W is completely immersed in a large block of ice at 0 degrees. In 22 minutes 2.0kg of water at 0 degree is produced. Calculate the lf of the ice
330000J/kg
300
A 12000kg railroad car is traveling at 2m/s when it strikes a 500kg car at rest what is the final speed if the cars move off together
What is 19.2ms-1
300
What is the kinetic energy of a footballer if he has a mass of 34 kg and a velocity of 12m/s
What is 2448J
300
A gas of volume 40m>3 at 12 degree Celsius is heated to 324 kelvin what is the final volume
What is 45.5 m>3
400
Would a brick of volume 23m>3 and mass 100kg float in a liquid of density 43kgm3?
What is yes
400
A 15W heater is placed in 200g of water at 20 degrees how long will it take to boil
what is 4480 seconds
400
A 300kg truck moving rightward with a speed 2.4m/s collides with a 2.3 kg bicycle going opposite direction wit a speed 2 m/s what is their final speed if they move off together?
what is 2.3 m/s.
400
A boulder of mass 12kg rolls off a cliff and reaches a maximum velocity of 23m/s just before it hits the ground. what was the potential energy of the boulder?
What is 3174J
400
What is the pressure of a gas at the temperature absolute Zero
0 Pa
500
A diver reaches a depth in sea water of where the pressure is 2 times greater than the surface. If the density of water is 1.3x10>3 kgm-3 and the pressure is 100000 Pa. What is the divers depth?
What is 15.3 m
500
State 1 difference between boiling and evaporation
boiling 100 degree and evaporation is at different temperatures
500
A 60g bullet is fired from a gun with speed 239m/s if the gun mass is 9kg what is the recoil speed?
What is -15.9m/s
500
A boulder of mass 15kg rolls off a cliff and reaches a maximum velocity of 42m/s just before it hits the ground. What is the height of the cliff?
What is 88.2 meters
500
A pump contains 25 cubic meter of air at 17 degree and pressure 1 atm. What is the pressure when compressed to 8 cubic meter and temperature rise to 20 degree