(Start on a new page.) A ball is dropped from the top of a building 20 m high. Ignore the effects of air resistance. 3.1 Define the term free fall. (2) 3.2 Calculate the: 3.2.1 Speed at which the ball hits the ground (4) 3.2.2 Time it takes the ball to reach the ground (3) … Read more
(Start on a new page.) A learner constructs a push toy using two blocks with masses 1,5 kg and 3 kg respectively. The blocks are connected by a massless, inextensible cord. The learner then applies a force of 25 N at an angle of 30o to the 1,5 kg block by means of a light … Read more
A police car moving at a constant velocity with its siren on, passes a stationary listener. The graph below shows the changes in the frequency of the sound of the siren detected by the listener. 6.1 State the Doppler Effect in words. (2) 6.2 Write down the frequency of the sound detected by the listener … Read more
In the diagram below, a 4 kg block lying on a rough horizontal surface is connected to a 6 kg block by a light inextensible string passing over a light frictionless pulley. Initially the blocks are HELD AT REST. 5.1 State the work-energy theorem in words. (2) When the blocks are released, the 6 kg … Read more
MULTIPLE-CHOICE QUESTIONS Various options are provided as possible answers to the following questions. Write down the question number (1.1–1.10), choose the answer and make a cross (X) over the letter (A–D) of your choice in the ANSWER BOOK. EXAMPLE: 1.1 The tendency of an object to remain at rest or to continue in its uniform … Read more
A 2 kg block is at rest on a smooth, frictionless, horizontal table. The length of theblock is x. A bullet of mass 0,015 kg, travelling east at 400 m∙s-1, strikes the block and passes straight through it with constant acceleration. Refer to the diagram below. Ignore any loss of mass of the bullet and … Read more
Stone A is projected vertically upwards at a speed of 12 m∙s-1 from a height h above the ground. Ignore the effects of air resistance. 3.1 Calculate the time taken for stone A to reach its maximum height. (3) At the same instant that stone A is projected upwards, stone B is thrown vertically downwards … Read more
2.1 An 8 kg block, P, is being pulled by constant force F up a rough inclined plane at an angle of 30o to the horizontal, at CONSTANT SPEED. Force F is parallel to the inclined plane, as shown in the diagram below. 2.1.1 State Newton’s First Law in words. (2) 2.1.2 Draw a labelled … Read more
MULTIPLE-CHOICE QUESTIONS Various options are provided as possible answers to the following questions. Choose the answer and write only the letter (A–D) next to the question number (1.1–1.10) in the ANSWER BOOK, for example 1.11 D. 1.1 The acceleration due to gravity on Earth is greater than that on the moon.Which ONE of the following … Read more