Preliminary Physics Review

Dentists use a _____ to focus light on the tooth of a patient.

What is the weight of a sack of radishes if 412J is need to lift it vertically 1.3m

Which wave has the shortest wavelength?

Which of these has the lowest refractive index?

Newton’s main contribution to the developing model of the Universe at the time was to:

When a truck crashes at high v it does more damage than a car crashing at the same v. why?

Which of the following is most correct?

A scuba diver hovering motionless depth of 8.0m below surface. which is correct?

A student repeated an investigation 3 time & ave. results. Taking the average would:

Newton’s 1st Law of Motion is not apparent when a trolley in motion rolls to a stop. Why:

Calculate the momentum of a car of mass 500kg travelling at 35ms⁻¹ east.

Eric shone a laser at 30° to the surface of a mirror. What is the angle of reflection?

How are voltmeters supposed to be connected in a circuit?

At a d of 2.5m, a globe’s intensity was 1.27 x 10^-1 Wm^-2. SA of a sphere 4πr², the ΣP of globe is

Which of these is a condition for total internal reflection?

if a rock moving with 0.4J doubles its speed, whats the new kinetic enerjy

light is shone through air into block of material. the light bends towards the normal, why?

Calculate the impulse of an object that is pushed for 15 seconds with a force of 20N