Btec Applied Science Unit 1 Physics Exam With Correct Answers

Btec Applied Science Unit 1 Physics
Exam With Correct Answers




Amplitude - correct answer The maximum value of displacement in the oscillation cycle
l l l l l l l l l l l l




Displacement - correct answer How far the quantity has moved from its rest value at any given time
l l l l l l l l l l l l l l l l l




Period - correct answer The time taken for one whole cycle of an oscillation
l l l l l l l l l l l l l




Oscillation - correct answer A regularly repeating motion about a central value
l l l l l l l l l l l




Wave speed equation - correct answer Wave speed = frequency x wavelength / v=fλ
l l l l l l l l l l l l l




Transverse waves - correct answer The displacement of the wave is at right angles to the direction of wave travel
l l l l l l l l l l l l l l l l l l l




Longitudinal waves - correct answer The displacement of the wave is parallel tot he direction of wave travel
l l l l l l l l l l l l l l l l l




Stationary waves - correct answer Two waves travelling in opposite directions/ energy is trapped in pockets
l l l l l l l l l l l l l l l

, Name the types of stationary waves from smallest to largest - correct answer 1st harmonic (fundamental), 2nd
l l l l l l l l l l l l l l l l l




harmonic, 3rd harmonic, 4th harmonic l l l l




What is the wavelength of a 1st harmonic stationary wave - correct answer 1/2 a wavelength / 1/2λ
l l l l l l l l l l l l l l l l l




What is the wavelength of a 2nd harmonic stationary wave - correct answer 1 wavelength / λ
l l l l l l l l l l l l l l l l




What is the wavelength of a 3rd harmonic wavelength - correct answer 1.5 wavelengths / 3/2λ
l l l l l l l l l l l l l l l




What is the wavelength of a 4th harmonic wavelength - correct answer 2 wavelengths / 2λ
l l l l l l l l l l l l l l l




Label a node and anti-node on a stationary wave - correct answer Node is the stationary part on a wave (the
l l l l l l l l l l l l l l l l l l l l l




middle bit) and the anti-node is the part in motion (the highest or lowest points on the wave)
l l l l l l l l l l l l l l l l l




Stationary waves in a tube - correct answer There are anti-nodes and each end of the tube
l l l l l l l l l l l l l l l l




How to draw a stationary wave in a tube - correct answer Start the wave at the top corner on the tube and then
l l l l l l l l l l l l l l l l l l l l l l l l




draw it down and bounce back off the bottom and repeat for the amount of waves that you need.
l l l l l l l l l l l l l l l l l l




Stationary waves in a closed end tube - correct answer There is a node at the closed end
l l l l l l l l l l l l l l l l l




How to draw a stationary wave in a closed end tube - correct answer Start with the wave in the middle of the
l l l l l l l l l l l l l l l l l l l l l l l




closed end, draw the wave going down and then up to the top and back to the rest position in the middle and
l l l l l l l l l l l l l l l l l l l l l l l




then repeat for the amount of waves that you need
l l l l l l l l l




Diffraction - correct answer The tendency of a wave to spread out in all directions
l l l l l l l l l l l l l l




Diffraction grating - correct answer A flat plane object l l l l l l l l