- 6. Use the electrostatic series to determine the charge on the following objects after being charged by friction: (4 marks) a) polyester rubbed with nylon b) wool rubbed with acetate c) silk rubbed with glass d) cotton rubbed with cotton
- A 0.40 kg mass vibrates at the end of a horizontal spring along a frictionless surface reaching a maximum speed of 0.50m/s If the maximum displacement of the mass is 0.11 m, what is the spring constant? (8.3N/m)
- A Question 19 (1 point) Retake question Calculate the change in temperature, Delta t that occurs when 12 .O kJ of thermal energy is added to 0.350 kg of water.(look in the data sheet for the specific heat capacity for water, unit conversions, do NOT include units) square A
- reacting to music to to __ Cancel and kepaple zones down on B. Distancepertienced, leading enterenced, because can experienced, because slows of experienced, because it came cars to be showed down Use the following information to answer the next question her answer killed anyone.suddenly becoming stationary That's what gots you? - Jeremy Clarkson 20. This statement is best describing what consequence of your vehicle suddenly stopping? A. Force: the change your speed in a creates a large force on you and your car B. Momentum: The speed and mass of an object lead to greater dangers on the road C. Impulse: The change in momentum from moving to stop is what causes damage D. Speed: Going fast is dangerous and can result in death __
- 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
