What Kind of Reality Check Do I Need Quiz
Q&A for How to Solve Any Physics Problem
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QuestionHow can I pass physics in grade 10?Community AnswerKeep trying and be thorough in learning the theories. Don't hesitate to ask any questions of your teacher if you don't understand something. Write notes and list down the formulas and stick them on your wall. Keep reviewing and things will fall into place easily.
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QuestionI struggle to remember physics formulas. Any tips?Community AnswerWrite the formulas down over and over again while standing up. Studies show that doing so can improve your recall. Also, you could record yourself reading the formulas and play them on a loop while you sleep.
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QuestionWhat is the relationship between Kelvin and Celsius?Community Answer0 degree Celsius = 273 Kelvin. Therefore, 25 degree Celsius (25 + 273) = 298 Kelvin.
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QuestionWhat is angular velocity?Community AnswerIt's the velocity of the object moving in a circular path. As it continuously changes its direction while moving in a circular path, it changes its angles - hence, angular velocity.
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QuestionA body is at rest, and gains a velocity of 10 ms-1 in 5 seconds. How do I find the acceleration and the distance covered by the body?Community AnswerFind the acceleration by using v = u + at, with 0 m/s as the initial velocity (u) and 10 m/s as the final velocity (v), and 5 s as time. Substitute the known values to get the distance covered by the body (x) in the equation v² = u² + 2ax, or in the equation x = ut + 1/2 at².
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QuestionWhat is a ruby made of?Community AnswerA ruby is a pink to blood-red colored gemstone, a variety of the mineral corundum (aluminium oxide). The red color is caused mainly by the presence of the element chromium. Its name comes from ruber, Latin for red. Other varieties of gem-quality corundum are called sapphires.
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QuestionWhat does analog in physics mean?Community AnswerAnalog in physics means that any parameters or values are represented in a mechanical way. Take for example the analog clock, whose hands move mechanically and continuously around the face.
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QuestionA ball hits a wall horizontally at 6m/s, it rebounds horizontally at 4.4 m/s, the ball is in contact with the wall for 0.04s, what is the acceleration?Community Answeru = 6m/s v= 4.4m/s t = 0.04sec. Using v= u+at i.e a = v - u / t now substitut values , a= 4.4-6/0.04 = -40m
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QuestionHelp me solve this problem? "An electric circuit is shown in the figure. I is the current entering into the circuit at A. What is the potential difference between C & D and what is the resultant resistance between A & B?"Community AnswerPotential difference can be found out by subtracting the value of given D from C.
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QuestionWhy does gravity vary from place to place?Community AnswerBecause the gravitational field strength (acceleration due to gravity) is higher at sea level than on top of a mountain.
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QuestionA force of 16 N acts on an area of 0.16 m2. What is the magnitude of pressure in pascals?Community AnswerPressure=Force/Area. Here Force is 16 N and Area is 0.16 m2. Hence Pressure will be 16/0.16=100 pascals.
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QuestionHow do I find the mass of an object?Community Answer
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QuestionWhat is the heat capacity of 80.0 kg of silver?Community AnswerHeat capacity is an intrinsic property of the material. So, it is the same value regardless of the mass, shape, or texture of the said material. For silver it is 0.233 J/g m K.
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QuestionWhat is displacement in physics?Community AnswerThe shortest distance between the final and the initial position is called displacement. It is a vector quantity, as it has both direction and magnitude.
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QuestionA vehicle accelerates from rest to 12 m/s in 5 seconds. How far does the vehicle travel?Amei JuttCommunity AnswerV=12, T=5, V=D/T, 12=D/5, =>D=12*5, =>D=60 meters. With this, D represent the distance traveled by the vehicle at the rate of 12 meter/sec for 5 seconds traveling a total of 60 meters.
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QuestionHow can I understand moment of force?Community AnswerForce = mass × acceleration. So, the moment of force is the product of mass into the acceleration of 1ms^_2.
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QuestionHow do I find the speed of a throw?Community AnswerBy determining the angle of throw, distance, time before landing, and using the formula.
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QuestionWhy can't I solve problems during an exam?Community AnswerYou can't solve problems during an exam because you are panicking. You need to take a deep breath, calm down, and relax so that your brain can function well.
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QuestionWhat is the difference between displacement, velocity, acceleration, and speed?Community AnswerDisplacement is the smallest distance between two points. Velocity is the displacement per unit of time. Acceleration is the velocity per unit of time. Speed is the distance covered per unit of time.
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QuestionWhat is weight of a body of mass 20kg at the equator?Community AnswerThe weight of the body will be given by W=mg Where W=weight m=mass g=gravity hence W=20kg*10N which will be equal to 200N. That will be the weight of the body at equator since gravity won't change on Earth unless you travel outside earth.
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QuestionHow do I label velocities?Community AnswerLabel them as V and write the number or an alphabet beside it based on the velocity. for example, initial velocity is given as 20 m/s and final velocity is given as 40 m/s. write like Vi=20 m/s and Vf = 40 m/s or V1= 20 m/s or V2 = 40 m/s. We do this for our understanding, but you can write in any way you want. The above one is the most common method.
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QuestionHow do I approach problems on frictional force?Ayush AbhilashCommunity AnswerSince frictional force is negative, you have to take it as negative even if the value is not given and the force applied by the object must be taken as positive. use F= ma and equations of motion to find out the variables.
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QuestionA silk rubbed on a hair several times acquires a net charge of - 0. 25 C. Did the silk gain or lose electron? How many electrons were transferred?Ayush AbhilashCommunity AnswerThe silk rod gained electrons. Use the formula Q= ne . where e is the charge on one electron that is -1.6*10^-19 and Q is given as -0.25 C. substituting these values we get n= 15.7*10^17( approx) that is the number of electrons. Always remember if there is negative charge it gained electrons and if there is positive charge it lost electrons.
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QuestionWhat is an easy way to avoid calculation mistakes in Physics numericals?DonaganTop AnswererUse a calculator and double- or triple-check your work.
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QuestionWhat do I do if I feel overwhelmed about physics problems?DonaganTop AnswererAsk for help from a teacher, a tutor or a friend.
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