The siren of a police car, which is travelling at a constant speed along a straight horizontal road, emits sound waves of constant frequency. Detector P is placed inside the police car and detector Q is placed next to the road at a certain distance away from the car. The two detectors record the changes … Read more
An object of mass 1,8 kg slides down a rough curved track and passes point A, which is 1,5 m above the ground, at a speed of 0,95 m·s-1. The object reaches point B at the bottom of the track at a speed of 4 m·s-1. 5.1 Define the term conservative force. (2) 5.2 … Read more
A bullet moves east at a velocity of 480 m∙s-1. It hits a wooden block that is fixed to the floor. The bullet takes 0,01 s to move through the stationary block and emerges from the block at a velocity of 80 m∙s-1 east. See the diagram below. Ignore the effects of air resistance. Consider … Read more
Stone A is thrown vertically upwards with a speed of 10 m∙s-1 from the edge of the roof of a 40 m high building, as shown in the diagram below. Ignore the effects of air friction. Take the ground as reference. 3.1 Define the term free fall. (2) 3.2 Calculate the maximum HEIGHT ABOVE … Read more
Block P, of mass 2 kg, is connected to block Q, of mass 3 kg, by a light inextensible string. Both blocks are on a plane inclined at an angle of 30°to the horizontal. Block Q is pulled by a constant force of 40 N at an angle of 25° to the incline. Block P moves … Read more
1.1 Which physical quantity is equal to the rate of change of momentum? A Mass           B Impulse C Net force D Acceleration          (2) 1.2 The gravitational acceleration on the surface of a planet of radius R is g. The gravitational acceleration at a height of 2R above the … Read more
Study the pie charts above and answer the questions that follow. 5.1.1 Write down ONE possible data collection method that was used to gather the above data. (2) 5.1.2 Calculate the percentage allocated for yard trimmings. (3) 5.1.3 Determine the percentage allocated for textiles. (2) 5.1.4 Calculate (in tons) the total amount of plastic recycled … Read more
4.1 ANNEXURE C shows a map of the Mountain Zebra National Park. Use ANNEXURE C to answer the question that follow. 4.1.1 Name ALL the activities offered in the circle, Z. (4) 4.1.2 Identify the 4 x 4 route situated north-east of the Juries Dam. (2) 4.1.3 Determine the number of restaurants found on the … Read more
Use the diagram above to answer the questions that follow. 3.1.1 Explain the meaning of volume. (2) 3.1.2 Calculate (in m3) the volume of ONE concrete block. You may use the following formula: Volume = side x side x height (3) Use ANNEXURE B to answer the questions that follow. 3.2.1 Calculate (in m2) the … Read more
Using the information in ANNEXURE A and answer the questions that follow. 2.1.1 Write down the market value in words. (2) 2.1.2 Calculate the VAT amount for the sewer monthly charge on a stand larger than 2000 m2. (2) 2.1.3 Write down the unit of measurement that was used for the meter readings. (2) 2.1.4 … Read more