FIZIX 1st Sem Review - Basics (PEMDAS, Units, Variables, Trig)

Front

What does PEMDAS stand for?

Back

PEMDAS stands for Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right). It is the order of operations used to solve mathematical expressions.

Front

Convert 250 grams to kilograms.

Back

0.25 kg

Front

What is the formula to calculate the final velocity when initial velocity, acceleration, and distance are known?

Back

v² = v₀² + 2ax

Front

What is the formula to calculate distance when initial velocity, time, and acceleration are known?

Back

x = v₀t + 1/2at²

Front

How do you solve the expression 4² x (8 - 3) using PEMDAS?

Back

80

Front

What is the formula to calculate the average speed when distance and time are known?

Back

Average Speed = Total Distance / Total Time

Front

What is the unit of acceleration in the SI system?

Back

Meters per second squared (m/s²)

Front

What is the formula for calculating acceleration?

Back

Acceleration (a) = (Final Velocity (v) - Initial Velocity (v₀)) / Time (t)

Front

If a car accelerates uniformly from rest to a distance of 110 m in 5.21 seconds, which equation would you use to find acceleration?

Back

x = v₀t + 1/2at²

Front

What is the significance of the negative sign in acceleration?

Back

A negative acceleration indicates that an object is slowing down.