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#PHYSICS #F4
Physical quantity is a quantity that is ?
Anonymous Quiz
6%
Small
6%
Big
79%
Measurable
9%
Variable
#PHYSICS #F4
Which of the following physical quantities will change when an object is brought from Earth to the Moon ?
Anonymous Quiz
33%
Mass
42%
Weight
17%
Inertia
8%
Length
#PHYSICS #F4
A car moves with uniform acceleration from 0 m s^-1 to 20 m s^-1 in 4 seconds. What is the acceleration of the car?
Anonymous Quiz
39%
5 m s^-1
28%
10 m s^-1
25%
20 m s^-1
9%
80 m s^-1
#PHYSICS #F4
Which physical quantity is equal to displacement (over) time ?
Anonymous Quiz
24%
Speed
40%
Velocity
23%
Distance
13%
Acceleration
#PHYSICS #F4
The heat capacity of sodium metal is 1500 J K^-1 , if the mass of sodium metal is 75 kg, what is the specific heat capacity of sodium metal?
Anonymous Quiz
20%
10 J kg^-1 K^-1
62%
20 J kg^-1 K^-1
18%
40 J kg^-1 K^-1
#PHYSICS #F4
Which of the following is the concept used in measuring the temperature of a human body using a thermometer ?
Anonymous Quiz
44%
Thermal equilibrium
38%
Specific heat capacity
18%
Heat convection
#PHYSICS #F4
A milk seller boils his milk in a pot. The temperature of the milk is raised from 10° C to 130° C with 12 000 kJ of heat energy. If the mass of milk is 25 kg, what is the specific heat capacity of the milk ?
Anonymous Quiz
39%
4 000 J kg^-1 °C^-1
51%
8 000 J kg^-1 °C^-1
10%
12 000 J kg^-1 °C^-1
#PHYSICS #F4
The heat capacity of sodium metal is 1500 J K^-1, if the mass of sodium metal is 75 kg, what is the specific heat capacity of sodium metal?
Anonymous Quiz
15%
10 J kg^-1 K^-1
56%
20 J kg^-1 K^-1
22%
40 J kg^-1 K^-1
7%
80 J kg^-1 K^-1
#PHYSICS #F4
A cannon ball with a mass of 20kg is fired from cannon with a mass of 400kg . If the cannon ball moves with a velocity of 120 m s^-1, what is the magnitude of the recoil velocity of the cannon ?
Anonymous Quiz
35%
3.0 m s^-1
37%
0.3 m s^-1
28%
6.0 m s^-1
#PHYSICS #F4
A boy with a mass of 30kg runs at a velocity of 6 m s^-1. He jumps on a stationary trolley with a mass of 15 kg . Both the boy and the trolley move together in the original direction of the boy's motion.What is the velocity of them?
Anonymous Quiz
17%
3.0 m s^-1
37%
4.0 m s^-1
35%
6.0 m s^-1
10%
8.0 m s^-1
#PHYSICS #F4
What is the SI unit for density?
Anonymous Quiz
31%
g cm-³
24%
g cm³
21%
kg m³
24%
kg m-³
#PHYSICS #F4
Which physical quantity is a derived quantity?
Anonymous Quiz
26%
Mass
16%
Length
43%
Weight
15%
Electric current
[ NOTES FOR TODAY #PHYSICS ]

Some derived quantities and their units.


📌 Volume (V) - m³
📌 Speed (v) - ms-¹
📌 Density (p) - kg m -³
📌Acceleration(a) - m s-²

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@StudyTimeFirst
credit :: @Qqila5
[ NOTES FOR TODAY #PHYSICS ]

what is newton's second law of motion ?

isaac newton's second law of motion states that when a net external force acts on an object , the acceleration of the object is directly proportional to the net force and has a magnitude that is inversely proportional to it's mass .

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@StudyTimeFirst