Compare and Contrast convex and concave Lenses (order jumbled)

Convex lenses are wider in the middle than they are at the edges and concave lenses are the opposite, with the middle being thinner than the edges.

Convex lenses are also known as converging lenses; parallel rays of light that enter it pass through and then pass through a single point, called the focus

Concave lenses are also known as diverging lenses; parallel rays of light that enter it pass through it and then spread away from each other, looking like they have left from a point on the other side of the lens, known as a virtual focus

Convex lens

Concave lens

Convex lenses are also called magnifying glasses because the virtual image is larger than the object. They are used in cameras, telescopes, microscopes and projectors. Concave lenses are used in some telescopes and in some safety backing viewers for vehicles.

Both lenses can be used for correcting eyesight problems. Convex lenses are used to correct for long-sight, however concave lenses are used to correct for short-sight.Both lenses can make virtual images but convex lenses

can make real images depending on the distance from the lens to the object.

Compare and Contrast convex and concave Lenses (order jumbled)

Convex lenses are wider in the middle than they are at the edges and concave lenses are the opposite, with the middle being thinner than the edges.

Convex lenses are also known as converging lenses; parallel rays of light that enter it pass through and then pass through a single point, called the focus

Concave lenses are also known as diverging lenses; parallel rays of light that enter it pass through it and then spread away from each other, looking like they have left from a point on the other side of the lens, known as a virtual focus

Convex lens

Concave lens

Convex lenses are also called magnifying glasses because the virtual image is larger than the object. They are used in cameras, telescopes, microscopes and projectors. Concave lenses are used in some telescopes and in some safety backing viewers for vehicles.

Both lenses can be used for correcting eyesight problems. Convex lenses are used to correct for long-sight, however concave lenses are used to correct for short-sight.Both lenses can make virtual images but convex lenses

can make real images depending on the distance from the lens to the object.

Compare and Contrast convex and concave Lenses – logical sequenceConvex lenses are wider in the middle than they are at the edges

and concave lenses are the opposite, with the middle being thinner than the edges.Convex lenses are also known as converging lenses; parallel rays of light that enter it pass through and then pass through a single point, called the focusConcave lenses are also known as diverging lenses;

parallel rays of light that enter it pass through it and then spread away from each other, looking like they have left from a point on the other side of the lens, known as a virtual focusBoth lenses can make virtual images but convex lenses

can make real images depending on the distance from the lens to the object.

Convex lens

Concave lens

Both lenses can be used for correcting eyesight problems. Convex lenses are used to correct for long-sight, however concave lenses are used to correct for short-sight.

Convex lenses are also called magnifying glasses because the virtual image is larger than the object. They are used in cameras, telescopes, microscopes and projectors. Concave lenses are used in some telescopes and in some safety backing viewers for vehicles.

Compare and Contrast convex and concave LensesConvex lenses are wider in the middle than they are at the edges

and concave lenses are the opposite, with the middle being thinner than the edges.Convex lenses are also known as converging lenses; parallel rays of light that enter it pass through and then pass through a single point, called the focusConcave lenses are also known as diverging lenses;

parallel rays of light that enter it pass through it and then spread away from each other, looking like they have left from a point on the other side of the lens, known as a virtual focusBoth lenses can make virtual images but convex lenses

can make real images depending on the distance from the lens to the object.

Convex lens

Concave lens

Both lenses can be used for correcting eyesight problems. Convex lenses are used to correct for long-sight, however concave lenses are used to correct for short-sight.

Convex lenses are also called magnifying glasses because the virtual image is larger than the object. They are used in cameras, telescopes, microscopes and projectors. Concave lenses are used in some telescopes and in some safety backing viewers for vehicles.

For achieved, for this question, the candidate should:• Have labelled the two lenses correctly and have any two key

points – probably from the list given on the example

For merit, for this question, the candidate should:• Have labelled the two lenses correctly and have two similarities

and two differences

For excellence, for this question, the candidate should:• Have labelled the two lenses correctly and have two similarities

and three differences, and• One use for each type of lens

Judgement Statement for this question