Paper 11

Question 1

An ice cube and container are placed on an electronic balance on a hot day. The container is sealed.
What happens?

Answer 1

Reading on balance - stays the same
Type of change - Physical
Name of change - Melting

Question 2

What is Newton’s third law?

Answer 2

Action and reaction are equal, opposite and act on separate objects

Question 3

Approximately, how many atoms would fit in a length of 1m

Answer 3

1 x 10^10

Question 4

Describe how the student could use the component tester to find the positive (+) terminal of a cell.

Answer 4

Connect one terminal of cell to A but lamp only lights if A is connected to positive terminal

Question 5

If the diode does not have a fixed resistor what type of graph should it be.

Answer 5

A straight line

Question 6

More than one force is required to stretch the spring.

Describe what happens if only one force is applied.

Answer 6

The spring accelerates

Question 7

Student A hangs a 400g mass over the pulley.
How can she work out the accelerating force on the trolley?
Use an equation to help explain your answer.

Answer 7

Multiply mass by acceleration due to gravity.

F = ma