- 1. Which of the following methods can calculate circuit current? a. Multiplying amps times ohms b. Dividing ohms by volts c. Dividing volts by ohms d. Multiplying volts times watts
- True/False Questions 1. Momentum is a scalar quantity. (True/False) 2. In an elastic collision, both momentum and kinetic energy are conserved. (True/False) 3. Kineric energy is always conserved in collisions (True/False) 4. Explosions can be analyzed using the conservation of momentum (True/False) 5. The momentum of a system can change if no external forces act on it. (True/False) 6. Momentum conservation principles are not applicable In sports. (True/False)
- 5 Rewatch 3394 5112 What is the role of a capacitor in a circuit? To amplify signals To store electrical charge To protect against excess electricity To emit light Question 8
- What protects a circuit from excessive electricity flow? Resistor Fuse LED Capacitor
- 2. In which type of collision is kinetic energy not conserved? - A) Elastic - B) Inelastic D C) Perfectly elastic 0 D) None of the above 3. Which principle explains the propulsion of rockets? - A) Conservation of mass - B) Conservation of energy - C) Conservation of momentum - D) Conservation of velocity 4. What happens in a perfectly inelastic collision? - A) Objects bounce off each other - B) Kinetic energy is conserved - C) Objects stick together and move with a common velocity - D) Momentum is not conserved 5. How do crumple zones in cars help in collisions? - A) They increase the car's speed B) They absorb impaci energy - C) They increase the vehicle's momentum - D) They deflect the collision force
