Physics End Of Term Exam 2

Question 1

What is formed when an opaque object blocks light?

Answer 1

A shadow

A shadow is created when light cannot travel further due to obstruction by an opaque object.

Question 2

What does the size of a shadow depend on?

Answer 2

The distance of the object to the light

The closer an object is to the light source, the larger the shadow it casts.

Question 3

What is the independent variable in an experiment?

Answer 3

The variable that is being changed

This variable is manipulated to observe its effect on the dependent variable.

Question 4

What is the dependent variable in an experiment?

Answer 4

The variable that is being measured

This variable responds to changes in the independent variable.

Question 5

What are controlled variables?

Answer 5

Variables that are kept the same

These variables ensure that the experiment is fair and that the results are valid.

Question 6

Fill in the blank: A line of __________ is drawn so that all the points are split evenly on either side of the line.

Answer 6

le

This refers to a specific type of line in geometry that divides a shape or space uniformly.