Review Questions Flashcards
True or False? Mass is the force acting on an object due to gravity.”
False
According to Newton’s Third Law, when two objects interact, the forces they exert on each other are…
equal and in opposite directions.
Which of these is an example of a longitudinal wave?
Sound waves
The magnetic field inside a solenoid is…
strong and uniform.
What is the gradient of a distance-time graph equal to?
Speed
Refraction is the process in which light…
changes direction as it enters a new medium.
A car is travelling at 30 mph. Which of the following is a sensible estimate for the stopping distance of the car?
25 m
A teapot is at rest on a table. The teapot exerts a force of 10 N on the table. What force does the table exert on the teapot?
-10 N
Which of the following is a magnetic material?
Nickel
Which of the following correctly describes ‘radiation dose’?
It is a measure of the risk of harm to a person from exposure to radiation.
What is the name of the point from which the weight of an object can be considered to act?
The centre of mass
True or False? “A typical person’s reaction time is between 2 and 3 seconds.”
False
Which of these quantities is not a vector?
Speed
