An experiment is conducted to study the motion of a wooden block of constant mass sliding down an inclined plane.
The plane exerts a force on the block that acts perpendicular to the surface of the plane. State the name of this force.
For an incline of angle 25∘25^\circ25∘, a student performs three trials and records the following values for the acceleration of the block down the plane: 3.45 m/s2,3.59 m/s2,3.37 m/s23.45\text{ m/s}^2, \quad 3.59\text{ m/s}^2, \quad 3.37\text{ m/s}^23.45 m/s2,3.59 m/s2,3.37 m/s2 Calculate the uncertainty in these acceleration measurements.
Practise AQA GCSE Physics Forces and motion with exam-style questions for Foundation and Higher tier. 83 questions covering Describing motion along a line, Forces, accelerations and Newton's Laws of motion, and Forces and braking, matched to the AQA GCSE Physics (8463) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.