Hurst Science

Year 8 Physics

Matter End of Topic Test

Time Allowed: 40 minutes

· The answers should be written on the question paper.

· Attempt all of the questions 1 – 7

· Calculators and rulers may be used.

Name:____________________

Teacher:__________________

TOTAL

/40

What have you done well in?

What could you have worked on more?

Set yourself a target for improvement.

%

Grade

CG

Q1.

x

(1 mark)

(3 marks)

Q2.

Any two of:

· Space between particles

· Gas particles are spread out

· Space for particles to move into if compressed

· Particles same size as one given

· Particles touching

· Particles non-uniformly arranged

(2 marks)

(2 marks)

Q3.

Any two of:

· Mirror is now a similar temperature to the steam (gas)

· Therefore particles near mirror do not cool down

· Condensation does not occur so mirror no longer misty

Any three of:

· Shower produces hot air/steam (from hot water)

· Steam (gas) expands to fill the room

· Mirror is a much lower temperature than the steam (gas)

· As particles cool down next to the mirror they lose (kinetic) energy

· Steam (gas) particles become water (liquid) condensation

· This water (steam) caused the mirror to appear misty

(3 marks)

(2 marks)

Q4.

(1 mark)

(a)

(b)

(1 mark)

(c)

(1 mark)

Q5.

Q6.

Any six of the points below. (Maximum 3 per method):

Metal Cube:

· Measure the sides of the cube (using a rule)

· Multiply sides of cube to find the volume (l x w x h or l3)

· Find the mass of the cube using a balance/scales

· Calculate the density but dividing mass by the volume ( – only counts once!

Small Statue:

· Put water into a large measuring cylinder and record the volume

· Submerge the statue and record the volume difference or water displacement

· Find the mass of the statue using a balance/scales

· Calculate the density but dividing mass by the volume (

(6 marks)

Q7* (GCSE Level Problem – to separate the A and A* students, mark this firmly.)

Do not accept equation with a ‘D’ for density