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Physics Quiz

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1 - Which Quantity has the same Base units as Energy?

Option A - Power

Option B - Momentum

Option C - Force/displacement

Option D - Moment

2 - What is the definition of Weight?

Option A - The amount of matter or mass

Option B - The acceleration of free fall * Density

Option C - The gravitational force acting on an object

Option D - The resistance to change in motion

3 - What is g?

Option A - The ratio between mass & weight

Option B - The ratio between weight & mass

Option C - The gravitational force

Option D - The gravitational field strength * mass

4 - State what is Newton's 2nd Law of Motion?

Option A - The resultant force is directly proportional to the rate of change in momentum in the same direction

Option B - In a closed system, the object will remain at rest or move at a constant velocity unless acted by a resultant force

Option C - There is no law called Newton's 2nd law of motion

Option D - When Object A exerts a force on Object B. Object B exerts an equal but, opposite force on object A.

5 What is linear Momentum?

Option A - It is the product of force and displacement

Option B - It is the product of force and time

Option C - It is the product of mass and velocity

Option D - It is the product of force and velocity

6 - What is Torque?

Option A - 2(One of the force * radius )

Option B - Force * perpendicular distance from the pivot to the line of action of the force

Option C - Force * displacement moved

Option D - It is angular momentum!

7 - What is the definition for elastic deformation?

Option A - Will not return to its original shape when the load is removed

Option B - The force is directly proportional to extension!

Option C - The limit in which the object is plastically deformed

Option D - Will return to its original shape when the load is removed

8 - How is Potential energy calculated?

Option A - Stress * Strain

Option B - 1/2 * Stress * Strain

Option C - Force * Extension

Option D - 1/2 * Spring Contant * Extension2

9 - How do you calculate work lost by springs?

Option A - The Difference between the work done on springs and work done by springs when extending the spring

Option B - The Difference between the work done on springs and work done by springs when extending and releasing the spring

Option C - The heat energy lost by springs when extending the springs

Option D - The heat energy lost by springs when extending and releasing the springs

10 - What is the definition of work done?

Option A - The ability to do work

Option B - The Amount of energy

Option C - Force * Displacement

Option D - Power * Time

11 - What are wavefronts?

Option A - Imaginary waves

Option B - Imaginary line through the crest of the wave that is perpendicular to the direction of wave energy

Option C - There is no thing called wavefronts

Option D - The direction of the wave flow

12 - The phase difference of 60° is the same as:

Option A - 376940°

Option B - 0°

Option C - 50460°

Option D - 180°

13 - What is Inteference?

Option A - When two or more waves meet, the resultant wave displacement is the sum of the displacements of the individual waves

Option B - A Subset of Superposition with coherent waves only

Option C - When two Coherent waves meet and cancel out each other

Option D - None of the above

14 - What is the equation related to diffraction grating?

Option A - λ = ax/D

Option B - dsinθ = nλ

Option C - nλ = path difference

Option D - v = fλ

15 - How is velocity of a wave calculated?

Option A - wavelength * Time

Option B - Wavelength * Amplitude

Option C - Wavelength/Period

Option D - Wavelength/frequency

16 - What is intensity of a wave?

Option A - The energy done by the wave per unit time

Option B - The work done by the wave

Option C - Power of the wave per unit time

Option D - Power of the wave per unit area

17 - What is the equation of work done by electric fields?

Option A - W = 1/2 * mv2

Option B - W = V/d

Option C - W = VQ

Option D - W = Fv

18 - What is the most penetrating radiation?

Option A - Alpha rays

Option B - Neutrinos

Option C - Beta rays

Option D - Photons

19 - Which are not fundamental particles?

Option A - Neutrinos

Option B - Electrons

Option C - Hadrons

Option D - Photons

20 - What do mean by the term random in radioactivity?

Option A - The time of decay of individual particles and the particles together is not known

Option B - The time of decay of individual particles is not known but, the particles together is known

Option C - Rate is not affected by external factors

Option D - Does not decay

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D. Moment is the correct answer because, we calculate moment by multiplying force times (perpendicular distance) which is the similar to the the work done equation of Fs . See more

C. Weight is a force and it is calculated using mg. It can not be the resistance to change in motion because that's the definition for mass. See more

B. It is the ratio between weight and mass as we know W = mg is same as W/m = g so the weight is over the mass. See more

A. This is a basic law you should know. See more

C. p = mv - Even though force * time give us the same units it gives us a different quantity called Impulse or change in momentum. See more

A. Torque is calculated by one of the force * the diameter so radius * 2 gives us diameter. See more

D. Elastic means returning to its original shape. See more

D. Elastic potential energy is calculated by 1/2kx2. On the other hand, 1/2 * Stress * Strain gives us energy per unit volume. See more

B. It must be the difference for ONE cycle (extending and releasing). Heat energy is not a good way to describe it because, there might be other forms. See more

C. It should be Force times the displacement moved in the direction of the force. See more

B. Wavefront is another way of representing the crest of a wave. See more

C. The difference in phase must be a multiple of 360° - (50460-60 )/360 = 140. See more

B. A subset of Superposition which includes only coherent waves. See more

B. dsinθ = nλ . See more

C. v=fλ is the same as λ/period because, frequency is the inverse of period. See more

D. Intensity is defined as the power per unit area. See more

C. W= VQ gives us the energy done by the eletric field. You can get the same answer using KE but, the question doesn't define the KE at which point. See more

D. Photons is another name for gamma radiation. See more

C. Hadrons is a class of particles not a particle itself. See more

B. The time of decay of individual particles is not known but, as a whole we can determine it using the decay constant (in A Levels). See more

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