A vertical pull of a heavy cable from the top down is likely to require a force that is at least equal to which of the following quantities?
6. Intro to Forces (Dynamics)
Newton's First & Second Laws
- Multiple Choice
- Multiple Choice
In which of the following situations do laws of motion not apply?
- Multiple Choice
Which of the following situations involves unbalanced forces acting on an object?
- Multiple Choice
Which historical figure developed the universal laws of motion?
- Multiple Choice
A box is acted upon by two forces: a force to the right and a force to the left. What is the acceleration of the box?
- Multiple Choice
According to Newton's laws, what is the SI unit of force?
- Multiple Choice
According to Newton's First Law, what must be specified in order to determine whether or not an object is moving?
- Multiple Choice
According to Newton's First and Second Laws, air bags in cars are designed to deploy at speeds up to what value in order to effectively reduce the force experienced by passengers during a collision?
- Multiple ChoiceAccording to Newton's Second Law, the net force on an object depends on both its mass and acceleration. Which equation correctly expresses this relationship?
- Multiple Choice
According to Newton's First Law, what is the relationship between an object's and its ?
- Multiple Choice
According to Newton's First and Second Laws, what is the primary factor that causes an object to change its state of motion (move or stay still)?
- Multiple Choice
When three blocks connected by light strings are released from rest on a frictionless horizontal surface, which of the following statements about their acceleration is correct?
- Multiple Choice
Which of the following statements about braking a car is true according to First and Laws?
- Multiple Choice
According to Newton's Second Law, what are the dimensions of force in terms of , , and ?
- Multiple Choice
Any external force that acts against movement is called .