Forces
Scalars and Vectors
Which of the following is a vector? *
1 point
Which of the following is a scalar? *
1 point
Forces
A gravitational force is an example of... *
1 point
What is the correct equation needed to calculate weight? *
1 point
Calculate the mass of an object that has a weight of 300N and gravitational field strength of 10N/kg *
1 point
Calculate the resultant force acting on a skydiver that has a weight of 700N and air resistance of 300N. *
1 point
Which equation shows the relationship between force, spring constant and extension of an elastic object, such as a spring. *
1 point
If the mass hanging on a spring is doubled from 0.5 kg to 1kg, what will happen to the extension of the spring? *
1 point
Which of the following is the correct equation for Newton's second law? *
1 point
Which of the following speeds is a typical running speed? *
1 point
Stopping distances
Drinking alcohol will affect a drivers braking distance *
1 point
If a car doubles its speed, its braking distance will... *
1 point