Experiment and explain finding resultant force of several forces on the same plane acting on objects.
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Q 1/20
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1. According to Source 1, what two pieces of information are needed to determine the speed of an object?
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Distance travelled and time taken.
Mass and velocity.
Force and displacement.
Acceleration and time taken.
Q 2/20
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2. What simple definition of speed is provided in Source 1?
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The change in velocity over time.
The rate at which an object changes its position.
The total distance travelled over a specific time interval.
How fast something is moving.
20 questions
Q.
1. According to Source 1, what two pieces of information are needed to determine the speed of an object?
1
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Q.
2. What simple definition of speed is provided in Source 1?
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3. Source 1 uses the example of three cars travelling the same distance in different times to illustrate speed. What conclusion can be drawn from this example?
3
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4. Source 1 mentions several units for measuring speed. Which of the following is NOT a unit of speed?
4
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5. What type of motion does Source 1 use as an example when defining speed?
5
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6. A cyclist travels 60 kilometres in 2 hours. What is their average speed?
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7. A train travels at a constant speed of 100 kilometres per hour for 3 hours. What distance does it cover?
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8. A runner completes a 10 kilometre race in 40 minutes. What is their average speed in kilometres per hour?
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9. Two cars are travelling on the same road. Car A travels 100 kilometres in 1 hour, while Car B travels 150 kilometres in 2 hours. Which car has a greater average speed?
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10. A plane flies 500 kilometres south in 1 hour. It then changes direction and flies 300 kilometres east in 30 minutes. What is its average speed for the entire journey?
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11. Source 1 explains that calculating speed often provides the average speed over a distance. Why is it important to distinguish between average speed and constant speed?
11
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12. How does the concept of speed help us understand and compare the motion of different objects?
12
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13. If an object is moving at a constant speed, what can we say about its velocity?
13
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14. Source 1 uses the ratio of distance and time to define speed. How does this mathematical relationship help explain the concept of speed?
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15. Why is it important to specify units when measuring and communicating speed?
15
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16. A cheetah runs 120 metres in 4 seconds. What is its speed?
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17. A snail crawls 1 metre in 10 minutes. What is its speed in centimetres per second?
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18. A car travels at a speed of 70 kilometres per hour for 2.5 hours. What distance does it cover?
18
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19. A train journey is 240 kilometres long. If the train travels at an average speed of 80 kilometres per hour, how long will the journey take?
19
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20. A cyclist wants to complete a 50 kilometre ride in 2 hours. What average speed must they maintain to achieve this goal?