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Why is light refracted when it crosses from air to glass?
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Related GCSE Questions
What is the difference between a transverse and longitudinal wave?
A coal fire is burning in the bottom of a furnace, with a chimney above it. Air moves into the furnace from an opening at the bottom and up the chimney. Describe how the process of convection causes this air movement.
A kettle requires 2400 Coulombs of charge to pass through its heating element, with a resistance of 6 Ohms, in a time of 200 seconds in order to boil the water inside it. Calculate the current flowing and the power of the kettle.
X-rays and gamma rays have different uses. Describe one use for X-rays and one use for gamma rays.
According to Newton's third law, every action has an equal and opposite reaction. Why then does a box move when I push it? Shouldn't the two opposing forces cancel out to a zero net force?
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