Cambridge IGCSE Physics1.5 Forces Worksheet
24 questions · 50 marks · Word
Download more IGCSE materials here
Build your own tests and worksheets using the Question Bank
What objectives does this worksheet meet?
Core
- I can sketch, plot and interpret load–extension graphs for an elastic solid, and describe the experiments used to obtain them.
- I can find the resultant of two or more forces that act along the same straight line.
- I know that an object stays at rest, or keeps moving in a straight line at constant speed, unless a resultant force acts on it.
- I can state that a resultant force may change the velocity of an object, by changing its speed or its direction of motion.
- I can describe solid friction as the force between two surfaces that can impede motion and produce heating.
- I know that friction (drag) acts on an object moving through a gas, for example air resistance.
- I can define the moment of a force as moment = force × perpendicular distance from the pivot, and I can recall and use this equation.
- I can apply the principle of moments when there is one force on each side of the pivot, including balancing a beam.
- I can describe an experiment to find the position of the centre of gravity of an irregularly shaped plane lamina.
- I can describe, qualitatively, how the position of the centre of gravity affects the stability of simple objects.
Extended
- I can define the spring constant as force per unit extension, and I can recall and use the equation k = F/x.
- I can recall and use the equation F = ma, and I know that the force and the acceleration act in the same direction.
- I can describe, qualitatively, motion in a circular path caused by a force perpendicular to the motion:a)if the force increases while mass and radius stay constant, the speed increasesb)if the force increases while mass and speed stay constant, the radius decreasesc)a greater mass needs a greater force to keep the speed and radius constant