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11. What is the meaning of impulse? A. Change in force B. Total speed C. Change in momentum D. Total force 12. Mr. Webster presses down on the brake pedal for 10 seconds and stops down his Sookg car from a speed of 38m/s The force applied by the brakes is __ N. (Record your answer in the numerical-response section on the answer sheet) __ 13. How do airbags help to reduce injuries during a collision? A. They reduce the amount of force experienced by passengers B. They prevent dangerous metal from entering the vehicle C. They hit the person instead of the dashboard D. They allow passengers to relax and go to sleep 14. What are some potential dangers that individuals may face in a mosor vehicle accident? A. Risk of Injury or death B. Increased comfort C. More safety for other drivers D. Reduced foel efficiency 15. Which of the following is a recommended safety measure for passengers in a vehicle? A. Standing while the vehicle is in motion B. Keeping windows open during travel C. Wearing seat belts properly D. Ignoring safety warnings 16. Mr. Yang drive a Nissan GTR to Edmonton for a badminton tournament. The distance to Edmonton was 300km, and it took Mr. Yang 6 hours. Mr. Yang did this trip as a speed of km/h. (Record your answer in the numerical-response section on the answer sheet.) 17. Mr. Webster takes his sky blue Mcl aren out to a race track and travels at an average speed 270km/h for 0.5 hours. The total distance Mr. Webster travelled was __ km. D. 1815km A. 270km __ stance Mr. W C. 135km D C. 135km

Question

11. What is the meaning of impulse? A. Change in force B. Total speed C. Change in momentum D. Total force 12. Mr. Webster presses down on the brake pedal for 10 seconds and stops down his Sookg car from a speed of 38m/s The force applied by the brakes is __ N. (Record your answer in the numerical-response section on the answer sheet) __ 13. How do airbags help to reduce injuries during a collision? A. They reduce the amount of force experienced by passengers B. They prevent dangerous metal from entering the vehicle C. They hit the person instead of the dashboard D. They allow passengers to relax and go to sleep 14. What are some potential dangers that individuals may face in a mosor vehicle accident? A. Risk of Injury or death B. Increased comfort C. More safety for other drivers D. Reduced foel efficiency 15. Which of the following is a recommended safety measure for passengers in a vehicle? A. Standing while the vehicle is in motion B. Keeping windows open during travel C. Wearing seat belts properly D. Ignoring safety warnings 16. Mr. Yang drive a Nissan GTR to Edmonton for a badminton tournament. The distance to Edmonton was 300km, and it took Mr. Yang 6 hours. Mr. Yang did this trip as a speed of km/h. (Record your answer in the numerical-response section on the answer sheet.) 17. Mr. Webster takes his sky blue Mcl aren out to a race track and travels at an average speed 270km/h for 0.5 hours. The total distance Mr. Webster travelled was __ km. D. 1815km A. 270km __ stance Mr. W C. 135km D C. 135km

11. What is the meaning of impulse? A. Change in force B. Total speed C. Change in momentum D. Total force 12. Mr. Webster presses down on the brake pedal for 10 seconds and stops down his Sookg car from a speed of 38m/s The force applied by the brakes is __ N. (Record your answer in the numerical-response section on the answer sheet) __ 13. How do airbags help to reduce injuries during a collision? A. They reduce the amount of force experienced by passengers B. They prevent dangerous metal from entering the vehicle C. They hit the person instead of the dashboard D. They allow passengers to relax and go to sleep 14. What are some potential dangers that individuals may face in a mosor vehicle accident? A. Risk of Injury or death B. Increased comfort C. More safety for other drivers D. Reduced foel efficiency 15. Which of the following is a recommended safety measure for passengers in a vehicle? A. Standing while the vehicle is in motion B. Keeping windows open during travel C. Wearing seat belts properly D. Ignoring safety warnings 16. Mr. Yang drive a Nissan GTR to Edmonton for a badminton tournament. The distance to Edmonton was 300km, and it took Mr. Yang 6 hours. Mr. Yang did this trip as a speed of km/h. (Record your answer in the numerical-response section on the answer sheet.) 17. Mr. Webster takes his sky blue Mcl aren out to a race track and travels at an average speed 270km/h for 0.5 hours. The total distance Mr. Webster travelled was __ km. D. 1815km A. 270km __ stance Mr. W C. 135km D C. 135km

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11. **C. Change in momentum** Impulse is defined as the change in momentum of an object. It's also equal to the force applied multiplied by the time interval over which the force acts.<br /><br />12. **-1900** To calculate the force, we use the impulse-momentum theorem: Impulse = Change in momentum. Force x Time = Mass x Change in velocity. Force x 10 s = 500 kg x (0 m/s - 38 m/s). Force = (500 kg x -38 m/s) / 10 s = -1900 N. The negative sign indicates the force is opposite to the direction of motion.<br /><br />13. **A. They reduce the amount of force experienced by passengers.** Airbags increase the time it takes for a person's momentum to change during a collision. Since impulse is equal to force multiplied by time, a longer time interval means a smaller force for the same change in momentum, reducing the severity of the impact.<br /><br />14. **A. Risk of Injury or death** Motor vehicle accidents pose a significant risk of injury, from minor cuts and bruises to severe trauma and fatalities.<br /><br />15. **C. Wearing seat belts properly** Seat belts are a crucial safety measure, designed to restrain passengers during sudden stops or collisions, preventing them from being ejected from the vehicle or hitting the interior with dangerous force.<br /><br />16. **50** Speed is calculated as distance divided by time. Speed = 300 km / 6 hours = 50 km/h.<br /><br />17. **C. 135km** Distance is calculated as speed multiplied by time. Distance = 270 km/h * 0.5 h = 135 km.<br />
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