year end revision part 1/2

An uncharged object has an equal number of ................... and electrons

Calculate the charge of the object alongside

+ - - + + - - - - + +

• + 1

• - 1

• - 11

• 0

If you drop a ball from 5M, its potential energy will ______

• decrease

• increase

• stay the same

What reaction releases energy from the Sun’s core?

• Nuclear fusion

• Nuclear fission

• chemical reactions

The sun is said to be a/an __________ sized star.

• small

• average

• large

The number of stars in our solar system:

• 1

• 2

• 3

• triple star system

Choose the correct description of the circuit outcomes, if all the switches in these circuits are to be closed.

• Circuit 1 will be dim,

  Circuit 2 will be bright

  Circuit 3 will be brighter.

• Circuit 1 will not light up,

  Circuit 3 will be bright

  Circuit 2 will be brighter.

• Circuit 1 will not light up,

  Circuit 2 will be bright

  Circuit 3 will be brighter.

An ................................. is a device used to measure current.

Good conductors offer ...

• high resistance

• low resistance

The relationship between voltage and current can be expressed as..

• a directly proportional relationship

• An inversely proportional relationship