Podcast
Questions and Answers
What is the speed of a moving car that covers 500 m in 20 sec?
What is the speed of a moving car that covers 500 m in 20 sec?
- 25 km/h.
- 20 km/h.
- 20 m/sec.
- 25 m/sec. (correct)
Which two factors are necessary for the description of motion?
Which two factors are necessary for the description of motion?
- Speed and time. (correct)
- Time and area.
- Distance and time.
- Weight and length.
Which of the following is a correct unit for measuring speed?
Which of the following is a correct unit for measuring speed?
- Metre²/second.
- Metre/second. (correct)
- Metre/second².
- Metre.second.
If a car travels a distance of 180 km at a regular speed of 90 km/h, how many hours does it need to cover this distance?
If a car travels a distance of 180 km at a regular speed of 90 km/h, how many hours does it need to cover this distance?
What is defined as the covered distance within a unit time?
What is defined as the covered distance within a unit time?
Flashcards
Speed
Speed
The rate at which something moves, calculated by dividing the distance traveled by the time taken.
Time
Time
The time it takes for something to move from one point to another.
Distance
Distance
The total length covered by an object in motion.
Meters per second (m/s)
Meters per second (m/s)
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Motion
Motion
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Study Notes
Motion in One Direction: Key Concepts
- Speed Calculation: A car covering 500 meters in 20 seconds has a speed of 25 km/h.
- Motion Description Factors: Two main factors necessary for describing motion are speed and time.
- Speed Measurement Units: Speed is commonly measured in meters per second (m/s) or kilometers per hour (km/h).
Scientific Terms
- Constant Speed Movement: An object that moves with uniform velocity in space is termed "uniform motion."
- Change in Position: The term describing the change in an object's position over time is "displacement."
Key Statements Completion
- Physical Quantity in Motion: Velocity is a physical quantity used to describe and compare the motion of objects.
- Distance Calculation: Distance can be calculated as speed multiplied by time (Distance = Speed x Time).
- Time to Cover Distance: A car traveling 180 km at a steady speed of 90 km/h requires 2 hours to complete the journey.
- Definition of Speed: Speed is defined as the distance traveled within a unit of time.
Real-Life Application
- Example of Motion: A car covering 150 km in 3 hours showcases speed calculation, with an average speed of 50 km/h.
- Example of Constant Speed: A train operating at a consistent 70 km/h illustrates the concept of uniform motion in transportation.
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Description
Test your knowledge on the fundamental concepts of motion with this quiz based on Unit 1: Motion in One Direction. Answer questions related to speed, measurement, and the factors that describe motion. Perfect for reinforcing your understanding of basic physics principles.
