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How does the wavelength of light (different laser colours: red, violet, green, etc.) of the incident ray change the angle of refraction within a glass block.

DV: The angle of refraction

IV: The wavelength of light (colour of laser)

CV: The critical angle, the different mediums, the intensity of light, the distance of the block to the source of the laser.

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Double slit diffraction

How does an increase in big D (distance from wall) change the distance between the points of interaction with the wall from the laser?

DV: The distance between the points of diffraction on the wall

IV: The distance of big D

CV: The laser intensity, the laser wavelength, the distance between the two slits, the distance of the laser to the slit.

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How does the striking speed of the pick affects the volume of the sound produced by guitar

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1. how does the tension of a string effect its frequency? (guitar string?)
2. how does tension in the different areas of a surface of a tennis racquet effect bounce height/drop height?

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0. Finding the Brewster angle of glass.
1. How does the density/concentration of soap in a liquid affect the Brewster's angle.
2. How does the density of a liquid affect the orientation of the reflected ray at Brewster's angle.
3. How does the frequency of the light changes the Brewster's angle

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1. Why does darker color absorb more heat energy.

2. What is the best angle to shoot a basketball with a longest distance.

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1. How does optical density of liquids affect its critical angle
2. How does the radius of vertical circular motion affect the horizontal distance object travels when released
3. How does the mass in mass-spring system affect the rate of change of kinetic energy

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How does temperature affect the viscosity of fluids

How does the distance between two stereo speakers affect the sound and how it is heard (finding the best spots/dead spots in cinema)

How does the amount of salt added to a liquid affect the time it takes to heat up  (specific heat capacity)

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How does the temperature of liquids affect the terminal velocity of a marble falling through it. (drag force and viscosity)

How the mass of the object affects the efficiency of energy at the lowest point of the bungee jump.

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How does the angle of the incline plane effect the distance that the ball boucnes from an certain height.

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What is the minimum angle needed for a piece of card to stay upright at different wind speeds

How does the height of the speed bump affect the velovity of a car

How does height affect the speed of a falling object tied to a helium balloon

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How frequency of sound affects absorption by insulating material
(measured as decibels of sound heard on the other side)

How angle of a ball impacting into sand affects the surface area of the impact crater

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UPDATED:
How does the velocity of a ball affect its rolling resistance?

How does the intensity of laser light affect the increase in temperature of water?

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How does temperature
How does the size of the balloon affect the force needed to break it?

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How does a change in temperature conditions affect the pitches of instruments?

How does the Mersenne’s law apply to violin strings

How can you use a microphone and CRO to measure “g” using a falling steel nut.

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1. How does the thickness of the blade affect the force needed to cut a piece of bread?
2. Cantilever Oscillation - How does the mass effect the frequency of the ruler?
3. How does the volume of the containers affect the height of the water jet and duration in Heron's law?

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How does sugar concentration affect the optical activity (polarization angle) of a solution?

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How does the size of the blade affect the lift produced by model helicopter?

How does the humidity surrounding a model helicopter affect its lift force?

How does surronding temperature affect the time taken for an object to reach terminal velocity? / does surronding temperature (temperature of oil) affect the time it takes for an object to reach the ground?

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Where is the most efficient point on earth for placing a solar panel?

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How does the the steepness of the bottom slope affect the wave characteristics in the surf zones?

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1. How does the distance affect the volume of coherent sounds?

2. How does the conductivity of different materials affect the time it takes for it to reach a certain temperature?

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How does cross-sectional area of a elastic band affect its stress and tensile strength?

How does pressure of a basketball affects the impluse on the ball when it rebounds?

How does the weight of a wind turbine blade affect its turning speed?

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What is the relationship between the radius of a ball and its terminal velocity when falling freely through air?

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How does the viscosity of a liquid effect the frequency of the container when it vibrates?

How does changing temperature affect the frequency of musical instruments?

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1. How does the speed of the badminton bat hits the badminton affects the distance it travel. (In a fixed angle)
2. How does the of volume of affects the time it cool down to a certain temperature
3. How does the room temperature affects the time it takes for a note played by guitar string to not be detected by a device.

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How does the tension of the string affect the fundamental frequency of the string?

How does the volume of water in a wine glass affect the fundamental frequency produced when the rim of the glass in rubbed with the hand?

How does the angle of projectile of a javelin affect the distance travalled?
IV - Angle of projectile
DV - Distance travelled
CV - velocity, wind direction/magnitude etc

How does the temperature affect the speed of sound in air?

How does the tube length of a tubular bell affect the fundamental frequency?

How does the speed of a sound source affect the change in frequency? (Doppler effect)
IV - Velocity of sound source
DV -
CV -

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How does temperature affect the doness of steak?

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How does the change in surface of a parachute affect the time taken for an onject to fall to the ground?

How does temperature affect resistance?

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What is the best mathematical model we can use to describe the expansion of the universe?

how does voltage affect the force on an electric charge moving through a magnetic field?

How does the tension and diameter of a string affect the fundamental frequency?

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How does temperature affect the refractive index of a solid?

How does the temperature of an elastic band affect the flight of an elastic band?

How does temperature affect the bounciness of a ball?

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How does temperature affect damping of a mass spring?

How does depth of water affect damping of a pendulum? (You would have it swing at different depths of water)

*How does density of fluid affect damping of a pendulum?

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How does the length of a guitar string affect the frequency of the harmonics?

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Why do we use “slow fire” to fry the food in order to be tender with a crispy crust?

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Why do we use “slow fire” to fry the food in order to be tender with a crispy crust?

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AndyLiu