Dynamics Review
Application of Newton's Laws of motion
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Topics of this game:
- "The acceleration of an object is directly proportional to the net force acting upon it and inversely proportional to the mass of the object" is a statement from which of Newton's laws?
- What is the standard unit of force in the SI system?
- If an object maintains its velocity, what must be true about the forces on the object?
- Which of the following properties of an object does not affect its weight?
- Which of these objects is experiencing a net force?
- As a child slides down and left down a playground slide, which way does the normal force point for the child?
- If a 40kg child is riding an elevator upwards with an upward acceleration of 1m/s^2, what is the normal force acting on the child?
- If a 800kg car experiences a frictional force of 1400N from wind and the road, what force does it need to maintain a forward acceleration of 3m/s^2?
- A 60kg sled is dragged by a rope with 200N of force at an angle of 30 degrees above the horizontal. What is the magnitude of the normal force acting upon the sled?
- A bug hits a windshield of a truck driving down the road. Is the following statement correct and why or why not? "The bug experiences the larger force because the bug is squished and changes its velocity a lot, while the truck is fine and doesn't really change velocities"
- Two identical blocks are placed on a horizontal table and a ramp. Neither block slides. Which student is correct in their analysis? Arnie: "The normal forces on both blocks are the same since they have the same weight and both have no net force." Bart: "The normal force is higher for the block on the ramp since it now points up AND to the side, so there's more." Cathy: "The normal force for the block on the ramp is lower because friction helps cancel the weight."
- A rope connects a car to a wagon (really not a good idea), to pull the wagon down the road. Which statement is true about the tension in the rope? 1. The tension for the car and the wagon are identical. 1. The tension is greater on the wagon than the tension on the car. 2. The tension is greater on the car than the tension on the wagon. 3. Without knowing the acceleration, the tensions cannot be compared.
- Design an experiment to determine the coefficient of friction between your shoes and a given ramped surface. What set of equipment would you select?
- Design an experiment to determine the coefficient of friction between your shoes and a given ramped surface. What variable that you can modify for your shoe would help you to get the data you need?
- Design an experiment to determine the coefficient of friction between your shoes and a given ramped surface. When you create your graph, what portion of the graph will tell you the coefficient of friction?
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