Newtonian Mechanics G10 Study Guide

This flashcard set covers core concepts from Newtonian Mechanics Topic 1 (Motion), Topic 2 (Forces and Newton’s Laws), and Topic 3 (Energy and Work) for Grade 10 students.

What is the difference between scalars and vectors?

Scalars possess only magnitude (such as distance, speed, and mass), whereas vectors possess both magnitude and direction (such as displacement, velocity, force, and acceleration).

How do distance and displacement differ?

Distance is the total path traveled by an object, while displacement is the straight-line change in position from the starting point.

What does the gradient of a Displacement-Time (s-t) graph represent?

The gradient of a displacement-time graph equals the velocity of the object.

What information can be derived from the gradient and the area under a Velocity-Time (v-t) graph?

The gradient represents the acceleration, and the area under the curve represents the displacement.

What is the Purpose of a ticker timer experiment?

The ticker timer experiment is used for finding velocity and acceleration of a moving object.

In mechanics, what are SUVAT equations used to calculate?

SUVAT equations are used to find time, final velocity, and distance.

Define Newton’s First Law (Inertia).

An object will maintain its state of motion unless acted upon by a resultant force.

What is the formula for Newton’s Second Law?

$$F = ma$$

How is Resultant Force calculated when considering opposing forces like drag?

$$\text{Resultant Force} = \text{Forward Force} - \text{Drag/Friction}$$

How does weight differ from mass, and what is the formula for weight?

Mass is constant everywhere, but weight changes depending on the gravitational field strength ($g$) of the planet or moon. The formula is $W = mg$.

Describe the states of a falling object at Terminal Velocity.

At terminal velocity, $\text{Weight} = \text{Air Drag}$. The net force and acceleration are both zero, and the object moves at a constant speed.

What is the formula for Gravitational Potential Energy (GPE)?

$$GPE = mgh$$

According to the notes, what are Kinetic Energy and Elastic Potential Energy?

Kinetic Energy is the energy of motion, and Elastic Potential Energy is the energy stored in stretched or compressed objects.

What condition must be met for Conservation of Energy to apply in "free fall"?

Conservation of Energy applies in free fall when air resistance is ignored.

What is Work, and what are its formulas?

Work is the energy transferred by a force, expressed as $W = Fd$ or $W = \text{change in Energy}$.

What happens to Kinetic Energy when an object slides to a stop on a rough surface?

Kinetic Energy is transformed into Thermal Energy due to the work done by Friction.

What tool is used to represent energy transformations visually?

Energy transformation diagrams using arrows.