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Physics: Speed and Velocity Quiz

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Questions and Answers

What is speed?

Speed is the distance an object travels in a certain amount of time.

What is the formula for speed?

Speed (S) = Distance (d) / Time (t)

Which of the following is NOT a unit of speed?

m/s

cm/sec (correct)

m/min

km/h

Suppose a person runs 2 meters in 10 seconds. What is their speed?

0.2 m/s Signup and view all the answers

A car travels 240 kilometers in 3 hours. What is the car's speed?

80 km/h Signup and view all the answers

What is velocity?

Velocity is the speed of an object, but the direction is also included. Signup and view all the answers

What is the formula for velocity?

Velocity (v) = Displacement(d) / Time interval (tint) Signup and view all the answers

What is the SI unit of velocity?

m/s Signup and view all the answers

Which of the following are velocities? (Select all that apply).

30 km/h northwest (B), 350 m/sec north (D) Signup and view all the answers

A very slow man walks 0.2 meters in 0.5 seconds east. What is his velocity?

0.4 m/s, east Signup and view all the answers

A car travels to the east at a displacement of 100 meters in 4 seconds. What is the car's velocity?

25 m/s, east Signup and view all the answers

A girl travels 20 miles on her bicycle. The trip takes 2 hours. What is her speed?

10 miles per hour. Signup and view all the answers

What is the velocity of a rocket that goes 700 km north in 25 seconds?

28 kilometers per second, north Signup and view all the answers

Bob rides his bicycle on a bike path that is 75 km long to get to his house that is due east of the bike path. If it takes Bob 15 hours, what is his velocity?

5 km/h, east Signup and view all the answers

What is the speed of a rocket that travels 9000 meters in 12.12 seconds?

742.57 meters per second Signup and view all the answers

Study Notes

Speed

Speed is the distance an object travels in a specific time.
The formula for speed is: Speed = Distance / Time
SI unit for speed is m/s, others include km/h, kph, m/min and mi/h.
Examples of speed calculations are provided.

Velocity

Velocity is the speed of an object, including its direction.
The formula for velocity is: Velocity = Displacement / Time Interval
SI unit for velocity is m/s. Velocity includes a direction (e.g., 10 m/s north).
Examples of velocity calculations and determining which values are velocities are shown.

Examples

Various examples of calculating speed and velocity are given, encompassing different scenarios like a person running, a car traveling, and a rocket moving.
These examples include detailed steps to solve problems involving speed and velocity calculation. Corresponding solutions and answers are also presented.

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Description

Test your understanding of speed and velocity with this quiz! It covers the definitions, formulas, and units for both concepts, as well as practical examples to help you calculate each. Enhance your grasp of these important physics topics and reinforce your problem-solving skills.