Question

You can use absolute and relative units like px and em in CSS Grid to define the size of rows and columns.

a) True
b) False

Answer 1

The statement that absolute and relative units such as px and em can be used in CSS Grid is true. Additionally, the Pythagorean theorem does apply to vectors at right angles, electric-field lines from a positive point charge do point outward, and in circuit diagrams, the voltage is not the same across the whole wire.

Step-by-step explanation:

The answer to whether we can use absolute and relative units like px and em in CSS Grid to define the size of rows and columns is true. In CSS Grid, various units can be employed to create flexible and responsive layouts. Units such as pixels (px) provide an absolute measurement, while ems (em) are relative to the font size of the element, enabling scalability based on user-specified text sizes or other relative measures.

Here are the answers to the provided true or false questions:

1. True: We can use the Pythagorean theorem to calculate the length of the resultant vector obtained from the addition of two vectors which are at right angles to each other.
2. True: The electric-field lines from a positive point charge spread out radially and point outward.
3. False: The displacement of the first person who walks 2 blocks east and 5 blocks north will be the same as the displacement of the second person who walks 5 blocks north and then two blocks east, as displacement is a vector quantity and depends only on the starting and ending points, not the path taken.
4. False: In a circuit diagram, we cannot assume that the voltage is the same at every point in a given wire, as voltage can drop over components or resistances in the circuit.