Physics 0625: FORCES AND MOTION Topical Past Paper Questions

Which row about weight and gravitational field strength is correct?

A student investigates the balancing of a metre ruler. Fig. 1.1 shows the apparatus. Fig. 1.1 (a) The student places a metre ruler on a pivot at the 50.0 cm mark. She places an object Q with its centre on the metre ruler at the 90.0 cm mark. Determine the distance $y$ from the 50…

(a) Define impulse. [1] (b) Fig. 2.1 shows a rocket and its exhaust gases. Fig. 2.1 The exhaust gases are emitted from the rocket with a velocity of 1400 m/s and at a rate of 2800 kg/s. > (i) Show that the force exerted on the rocket by the exhaust gases is 3900 kN. > > State the…