- What happens to the molecules within a gas when the gas condenses? A. They gain energy. B. They lose energy. C. They drift apart. D. They move faster.
- 13. Newton's Second Law states that acceleration is directly proportional to __ and inversely proportional to __ 14. When a person jumps, they push down on Earth with a force that is __ to the force Earth exerts on them. Multiple Choice Questions 15. Which force pair represents Newton's Third Law? a) Weight and normal force on the same object b) Force of a person pushing a wall and wall pushing back c) Friction and gravity on a sliding object d) Weight and air resistance on a falling object 16. If the net force on an object is zero, the object must be: a) At rest b) Moving with constant velocity c) Either at rest or moving with constant velocity d) Accelerating 17. What happens to acceleration if the force is doubled and mass is halved? a) Remains the same b) Doubles c) Quadruples d) Becomes one-fourth 18. The force that always opposes motion between surfaces is: a) Normal force b) Gravitational force c) Friction d) Tension 19. A spacecraft in space far from any planets moves with constant velocity This is an example of: a) Newton's First Law b) Newton's Second Law c) Newton's Third Law d) Conservation of Energy
- Name Newton's Laws Quiz:2025:01:10 Period __ Please answer these 20 questions para Subir la Nota Gracias! True or False Calculations An object in motion will eventually stop by itself even without external forces. 1. Newton's Third Law applies only to stationary objects. 2.The net force is zero when an object moves at constant velocity. 3.Mass and weight are the same thing. 4.The acceleration due to gravity is constant near Earth's surface. 5.A force of 150 N acts on a mass of 30 kg . Calculate the acceleration. 6. Calculate the force required to accelerate a 75 kg mass at 6m/s^2 7.If a 2000 kg truck accelerates from 0 to 15m/s in 3 seconds, what is the force applied? 8.Calculate the mass of an object if a force of 320 N causes it to accelerate at 8 m/s^2 9.A 0.25 kg tennis ball experiences a force of 10 N . What is its acceleration? Fill in the Blanks 10. The tendency of an object to resist changes in its state of motion is called __ 11. In the absence of external forces, an object will continue moving with __ velocity. 12. The SI unit of mass is __
- 2) A wheel turns with constant angular acceleration 0.520rad/s^2 a) How much time does it take to reach an angular velocity of 8.00rad/s starting from rest? b)Through how many revolutions does the wheel turn in this time interval? 15.38 s, 9.8 rev
- A 10.0 -kg toy motorized boat uses 2.0 W of power, has a constant acceleration from rest and re speed in 10 s on a horizontal surface What was that final speed? [T4]
