MCAT Physical : Newton's Laws

Study concepts, example questions & explanations for MCAT Physical

varsity tutors app store varsity tutors android store

Example Questions

Example Question #5 : General Principles

ball is rolled into a stationary ball. If the heavier ball applies a  force on the smaller ball, what force will the smaller ball apply on the large ball?

Possible Answers:

Correct answer:


The answer to this question lies within Newton's third law: for every action, there is an equal and opposite reaction. If the large ball applies a  force on the smaller ball, the smaller ball will apply a  force on the large ball in the opposite (negative) direction.

Example Question #6 : General Principles

A 1kg plate falls from a shelf 1m above the ground and breaks into three pieces of mass 0.1kg, 0.4kg and 0.5kg. What is the total energy of the scattered pieces?

Possible Answers:

We must know the velocity of each piece to solve

We must know the shape of the plate to solve

Correct answer:


This is a conservation of energy question. The event is the collision. The initial energy can be calculated by gravitational potential energy:

The final total energy must be the same. The energy of the scattered pieces must add to 

Learning Tools by Varsity Tutors

Incompatible Browser

Please upgrade or download one of the following browsers to use Instant Tutoring: