Foundations of Physics & Measurement
What science studies matter, energy, work, and how they are related?
Physics
What Latin word means “knowledge” or “to know”?
Scientia
The change in an object's position over time relative to a reference point.
motion
A scalar quantity that tells us how fast something is moving.
speed
Name one quantity used to describe motion.
Speed
What does the Greek word “fusika” refer to?
The study of natural things
What type of science focuses on solving real-world problems?
Applied science
What does a scalar quantity have?
Magnitude only.
What is the formula for speed?
Speed = Distance ÷ Time
Name all five motion quantities presented in the lesson.
Speed, velocity, acceleration, distance, and displacement.
What are two major things primarily studied in Physics?
Matter and energy
It is a logical approach used to solve a problem or find an explanation for a phenomenon.
Scientific method
What does a vector quantity have?
Magnitude and direction.
A cyclist travels 240 m in 30 s. What is the cyclist's speed?
8 m/s
What happens to velocity during uniform motion?
The velocity remains constant.
Physics also studies how matter and energy are ________.
Related or interact
What is the SI base unit for temperature?
Kelvin (K)
Why is a reference point important when describing motion?
It allows us to determine whether an object's position has changed.
A car increases its velocity from 8 m/s to 20 m/s in 4 s. What is its acceleration?
3 m/s²
A stone is dropped from rest. After 1 second, what is its approximate velocity?
9.8 m/s
A student studies how a moving object changes its motion when a force is applied. What branch of science is being applied?
Physics
Name the SI base units for electric current, amount of substance, and luminous intensity.
Ampere (A), mole (mol), and candela (cd)
A student walks 3 m east and then 4 m north. What is the total distance traveled?
7 m
A ball has a momentum of 10 kg·m/s and moves at 2 m/s. What is its mass?
5 kg
A rock is dropped from rest and reaches the ground after 5 seconds. What is its approximate final velocity?
49 m/s