Forces, Motion, & Energy Flashcards

Flashcards covering key concepts related to forces, motion, energy, kinematics graphs, acceleration, and speed as discussed in the lecture notes.

What are the two types of parameters of motion mentioned?

Vectors and scalars

Define acceleration in physics terms.

The rate at which velocity changes with time, in terms of both speed and direction.

List three scenarios when acceleration can occur.

When an object speeds up, slows down, or changes direction.

What is the approximate value of acceleration due to gravity (g) on the surface of Earth?

9.81 ms-2

How does 'g' (acceleration due to gravity) vary between different planets?

It varies because different planets have different masses.

What is the formula to calculate speed?

s = d/t, where s = speed, d = distance, and t = time.

What is the formula to calculate velocity?

v = Δx/t, where v = velocity, Δx = displacement, and t = time.

What is the formula to calculate acceleration?

a = Δv/t, where a = acceleration, Δv = change in velocity, and t = time; also a = (vf - vi)/t where vf = final velocity and vi = initial velocity.

What type of motion is represented in displacement-time graphs?

Motion in 1-dimension

What type of motion is represented in velocity-time graphs?

Motion in 1-dimension

What is the relationship between displacement-time, velocity-time and acceleration-time graphs?

It is possible to convert between displacement-time, velocity-time, and acceleration-time graphs for motion in one-dimension

What is instantaneous speed?

The speed of an object at a particular moment in time. If direction is included it becomes instantaneous velocity

What is average speed?

The total distance traveled divided by the time taken to cover that distance.