This is from physics & maths tutor
| Front | How can you choose an appropriate quantity of masses to use as the fixed mass for this experiment? |
| Back | Carry out a preliminary experiment to find what weight is needed to just accelerate the trolley from rest. |
| Front | Why is it important for the results of studies on the effects of radiation to be published and shared with other scientists? |
| Back | ● To allow the findings to be independently checked ● This is known as peer review |
| Front | Is mains electricity an a.c supply or a d.c supply? What do each of these stand for? |
| Back | Mains electricity is an a.c supply a.c. : Alternating Currentd.c. : Direct Current |