Selected questions that are on new Physics IB syllabus From HL May 08 TZ2 and Grade Gorilla.

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Presentation transcript:

Selected questions that are on new Physics IB syllabus From HL May 08 TZ2 and Grade Gorilla

Elephant lifetime

Straight line plot

Vector subtraction

Combining percentage uncertainty

Falling in viscous fluid

Efficiency

Spring stretch

Acceleration 1

Acceleration 2

Circular motion

Escape velocity

Forces in Fields

Gas leak

Ideal gas

Specific heat (capacity)

Entropy

Heat Engine

Snell’s law

Standing wave

Standing wave 2

Interference

Doppler shift

Units of resistance

Field due to point charges

Field due to current

Field effects

Field effects 2

Induction

Induction 2

Beta minus decay

Decay rates

Photocell

de Broglie wavelength

Mass spectrometer

Alpha scattering

Fossil fuels Most used worldwide in electricity generation Highest efficiency in a power station A.A. gasoil B.B. coal C.C. gas D.D. oil Which of these answers correctly describes the uses and properties of the 3 fossil fuels?

Power of waves A sea wave of length l, amplitude A and velocity v produces a maximum power output of P. if the wave increase in strength to have a velocity of 3v, amplitude of 4A, then the power for an identical length will be A. 7P B. 12P C. 36P D. 48P

MeVc -2 When using the formula E=mc 2 it is common to use units of MeV c -2. This is a unit of A. mass B. energy C. velocity D. power

Peak wavelengthTotal power radiated A.A. increasesdoubled B.B. increases16 times higher C.C. decreasesdoubled D.D. decreases16 times higher Black body radiation Black body radiation is the name given to radiation emitted by a hot body. If the temperature of a body is doubled, how does this affect the power output and the peak wavelength?

Binary The number 28 converted to binary is A B. 111 C D

Three distant stars appear close together in a line in the night's sky. They can just be resolved by a CCD if the light falls on a line of at least A. 3 pixels length B. 5 pixels length C. 6 pixels length D. 9 pixels length CCD Resolution

Magnification A small rectangle measuring 1.5mm x 3mm is photographed using a digital camera. The image produced on the CCD measures 6mm x 12 mm. The magnification of the camera is therefore equal to A. 4 B. 16 C D