1.2. Motion
A subsection of Physics, 0625, through 1. Motion, forces and energy
Listing 10 of 530 questions
A long tube contains oil. A small ball is held at rest at the surface of the oil. At time t = 0, the ball is released and begins to fall vertically through the oil. shows the ball falling through the oil. ball oil As the ball begins to fall through the oil, it accelerates. Define acceleration. The mass of the ball is 0.0075 kg. Calculate the resultant force acting on the ball when it is accelerating downwards at 2.8 m / s2 . resultant force = As the ball falls, its speed v is recorded. is the speed–time graph for the falling ball. 0.01 0.02 0.03 0.04 t / s 0.02 0.04 v m / s 0.06 Describe what happens to the acceleration between t = 0 and t = 0.040 s. Explain why this happens. By drawing a tangent on , determine a value for the acceleration of the ball at t = 0.010 s. acceleration =
0625_s24_qp_41
THEORY
2024
Paper 4, Variant 1
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A ball of mass 130 g is launched from the ground at an initial velocity of 14 m / s vertically upwards. It decelerates until it is at rest momentarily at a height h above the ground. Define deceleration. The acceleration of free fall is 9.8 m / s2. Show that the time taken for the ball to reach height h is 1.4 s. Ignore the effect of air resistance. Calculate h. Ignore the effect of air resistance. h = The ball is dropped from the top of a tall building. Describe and explain the motion of the ball as it falls. Consider the effect of air resistance in your answer.
0625_s24_qp_43
THEORY
2024
Paper 4, Variant 3
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Questions Discovered
530