Transformations

Question 1

What is a transformation?

Answer 1

The change in size or position of an object.

Question 2

What is a translation?

Answer 2

A movement up down left or right in a straight line.

Question 3

Inverse

Answer 3

The transformation that undoes the effect of another.

Question 4

Enlargement

Answer 4

Changes the size and shape

All are the same but the lengths of each side are multiplied by the same scale factor

Question 5

What to give when describing an enlargement?

Answer 5

1. The scale factor

2. The centre

Question 6

Rotation

Answer 6

Turns a shape on a fixed point.

Question 7

What to give when describing a rotation?

Answer 7

1. The angle turned through
2. The direction (clockwise or anti-clockwise) - also the sense of rotation.
3. The centre

Question 8

How are angles rotations specified

Answer 8

1. In degrees - 90
2. In right angles - 1 right angle
3. In fractions of a (full) turn- a quarter of a turn