Important Flashcards
Draw the refraction of light in glass
What is the image produced by a conveging lens like when the object is more than two focal lengths from the centre of the lens? and Draw it
- The image is real
- The image is inverted
- The image is diminished (smaller than the object)
- Examples: the eye and cameras
What is the image produced by a conveging lens like when the object is between one and two focal lengths from the centre of the lens?
- The image is real
- The image is inverted (upside down)
- The image is magnified (larger than the object)
- Examples are the projector and the photocopier
What is the image produced by a conveging lens like when the object is two focal lengths from the lens
- The image is the same size as the object
- Image is real
- Image is inverted
What is the image produced by a conveging lens like when the object is between the principal focus and the centre of the lens?
- The image is erect (the right way up)
- The image is Virtual
- The image is magnified
- The image is also on same side of the lens as the object
- Am example is a magnifying glass
Draw the reflection of wavefronts on a plane mirror
Draw the diffraction of wavefronts at a glass block
Diffraction of wavefronts at a gap
Diffraction of wavefronts at an edge
Diffraction of wavefronts round an obstacle
Draw the dispersion of white light through a prism (red and blue)?
How do gas particles exert a high pressure on the walls on the inside of a container?
- molecules hit walls
- Particles rebound and change momentum
- Exerts force on wall and there are many collisions across area of wall
What is the difference between evaporation and boiling?
- evaporation only occurs from the surface of the liquid. Boiling happens throughout the liquid
- Evaporations does not produce bubbles whereas boiling does
- Evaporation results in cooling whereas Boiling does not
