* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Form 3 Science Test Test 6: Force, energy and motion Total: 50
Survey
Document related concepts
Center of mass wikipedia , lookup
Velocity-addition formula wikipedia , lookup
Coriolis force wikipedia , lookup
Relativistic mechanics wikipedia , lookup
Jerk (physics) wikipedia , lookup
Fundamental interaction wikipedia , lookup
Modified Newtonian dynamics wikipedia , lookup
Fictitious force wikipedia , lookup
Classical mechanics wikipedia , lookup
Seismometer wikipedia , lookup
Rigid body dynamics wikipedia , lookup
Equations of motion wikipedia , lookup
Centrifugal force wikipedia , lookup
Newton's theorem of revolving orbits wikipedia , lookup
Mass versus weight wikipedia , lookup
Classical central-force problem wikipedia , lookup
Transcript
Form 3 Science Test Test 6: Force, energy and motion Total: 50 marks Name: ______________________________________ Date: ______________ Section A Write down the correct letter for each of the following questions. You must choose one answer only. 1. 2. Who developed the Laws of Motion? A Sir Adrian Newton B Sir Isaac Newton C Galileo Galilei D Kelvin Choose the correct answer. A Newton’s Laws of Motion predict and explain why things move fast, move slowly or stop moving. B In terms of Newton’s Second Law of Motion, a force changes the movement of an object. C Newton’s Third Law of Motion states that all moving objects move at a constant speed. D All of the above. 1/6 Science Test 6 © Pearson Botswana. Permission is given to photocopy these pages for school use. 3. 4. Choose the correct answer. A Air resistance is a form of friction. B Friction is the force that makes moving objects come to a stop. C Friction will be low when the ground is slippery. D All of the above. Choose the correct answer. A If a ball is moving in the air, it will eventually fall to the ground due to the force of gravity. B If a ball is moving in the air, it will eventually fall to the ground due to the force of friction. C Gravity is the force that ensures that the planets move in circles around the moon and not in a straight line. D 5. 6. Gravity is the force that ensures that the planets move in a straight line. Choose the correct answer. A The velocity of an object is how fast it is going. B The velocity of an object is how slow it is going. C Velocity is when we multiply the mass of something with its height. D Boys naturally have a greater velocity than girls. What is momentum? A The speed at which we move B The answer we get when we multiply the mass of something by its velocity C The answer we get when we divide the mass of something by its velocity D None of the above. 2/6 Science Test 6 © Pearson Botswana. Permission is given to photocopy these pages for school use. 7. Choose the correct answer. A Forces do not work on their own. B Forces act in pairs. C When an object exerts a force on another object, the second object will exert an equal but opposite force the first object. D 8. 9. 10. All of the above. What is the SI unit of force? A The metre B The joule C The Newton D The Kelvin What instrument is used to measure force? A A thermometer B A forcemeter C A forceps D A hydrometer Choose the correct answer. A The formula for force is F = x where F stands for force, stands for mass and for acceleration. B The formula for force is F = x where F stands for force, stands for momentum and for acceleration. C The formula for force is F = x where F stands for force, stands for mass and for altitude. D The formula for force is F = x where F stands for friction, stands for mass and for acceleration. [10] 3/6 Science Test 6 © Pearson Botswana. Permission is given to photocopy these pages for school use. Section B 11. Explain Newton’s First Law of Motion, by providing an example from everyday life. (4) _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ 12. Explain Newton’s Second Law of Motion by proving an example from everyday life. (4) _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ 13. Explain Newton’s Third Law of Motion by providing an example from everyday life. (4) ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ 4/6 Science Test 6 © Pearson Botswana. Permission is given to photocopy these pages for school use. 14. If a runner has a mass of 80 kg, what is the force he will have to exert to move at an acceleration of 5 m/s? (4) _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ 15. Kagiso is a tennis player. What acceleration will she give to a ball with a mass of 200 g when she hits it with a force of 100 N? (4) _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ [20] Section C 16. Write out an experiment you would conduct to show what causes a ball to bounce off a wall. Explain your findings in terms of what you know about force. (10) _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ 5/6 Science Test 6 © Pearson Botswana. Permission is given to photocopy these pages for school use. 17. There is no application for Science in everyday life. Write a short paragraph to disprove this statement. Use examples from what you have learnt about force to support your answer. (10) _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ [20] Total: 50 6/6 Science Test 6 © Pearson Botswana. Permission is given to photocopy these pages for school use.