Physics quick practice

Question 1 of 10

A ball is thrown vertically upwards at 20 m/s. How high does it rise?

Question 2 of 10

A convex mirror is used as a car's rear-view mirror because it

Question 3 of 10

The focal length of a curved mirror is

Question 4 of 10

Mechanical advantage (MA) is

Question 5 of 10

A ray of light passes from air into a glass block of refractive index 1.52 at an angle of incidence of 30°. (a) State Snell's law. (b) Calculate the angle of refraction. (c) Calculate the critical angle of the glass. (d) Explain, with a diagram, what happens to a ray inside the glass that strikes the glass–air surface at an angle greater than the critical angle.

Question 6 of 10

According to the kinetic theory, the particles of a gas

Question 7 of 10

Newton's third law states that

Question 8 of 10

The branch of physics that deals with heat is

Question 9 of 10

Total internal reflection occurs when light travels

Question 10 of 10

A thermometric property is a property that