#1
Which of the following is an example of motion?
A flying bird
ExplanationMotion refers to a change in position over time.
#2
What is the formula for calculating speed?
Speed = Distance / Time
ExplanationSpeed is the rate at which an object covers distance.
#3
What is the SI unit of speed?
Meters per second (m/s)
ExplanationSI unit for measuring speed.
#4
A car travels 200 kilometers in 4 hours. What is its speed?
50 km/h
ExplanationSpeed calculation using distance and time.
#5
What is the difference between speed and velocity?
Speed is a scalar quantity, while velocity is a vector quantity.
ExplanationSpeed only indicates magnitude while velocity includes direction.
#6
A train travels 300 meters in 20 seconds. What is its speed?
15 m/s
ExplanationCalculating speed using distance and time.
#7
Which of the following is a correct unit for acceleration?
meters per second squared (m/s²)
ExplanationSI unit for measuring acceleration.
#8
What is the relationship between distance, time, and speed?
Distance = Speed x Time
ExplanationBasic formula for distance, speed, and time.
#9
Which of the following statements about instantaneous speed is correct?
It is the speed measured at a particular instant in time.
ExplanationInstantaneous speed is measured at a specific moment.
#10
A runner completes a marathon in 2 hours and 30 minutes. What is the average speed of the runner if the marathon is 42 kilometers long?
28 km/h
ExplanationCalculating average speed over a given distance and time.
#11
What does the slope of a distance-time graph represent?
Velocity
ExplanationThe slope indicates the rate of change of distance with respect to time.
#12
If an object moves at a constant speed, what can you say about its acceleration?
Acceleration is zero
ExplanationConstant speed means no change in velocity.
#13
Which of the following is an example of deceleration?
A car slowing down at a traffic light
ExplanationDeceleration refers to negative acceleration.
#14
What is the difference between average speed and instantaneous speed?
Average speed is the total distance traveled divided by the total time taken, while instantaneous speed is the speed at a specific instant.
ExplanationAverage speed over a distance vs. speed at a moment.
#15
What is the unit of acceleration when speed is measured in kilometers per hour (km/h) and time in seconds?
km/h/s
ExplanationUnit of acceleration derived from speed and time units.
#16
Which of the following is an example of uniform circular motion?
A satellite orbiting the Earth
ExplanationMotion at a constant speed along a circular path.
#17
Which of the following is true about velocity?
Velocity is the rate of change of position
ExplanationVelocity includes both speed and direction.
#18
What does a negative acceleration indicate?
The object is slowing down
ExplanationNegative acceleration implies a decrease in speed.
#19
A car accelerates from rest to 30 m/s in 5 seconds. What is its acceleration?
10 m/s²
ExplanationCalculating acceleration using change in speed and time.
#20
Which of the following is a correct unit for velocity?
Meters per second (m/s)
ExplanationStandard unit for expressing velocity.
#21
What is the acceleration of an object moving at a constant speed?
Zero
ExplanationNo change in speed means no acceleration.
#22
What is the acceleration due to gravity on the surface of Earth?
9.8 m/s²
ExplanationAcceleration experienced by objects in free fall.
#23
An object is thrown upward. What is the direction of its acceleration during its upward motion?
Downward
ExplanationAcceleration due to gravity acts downwards.
#24
What happens to the speed of an object in free fall?
It increases quadratically
ExplanationSpeed increases due to acceleration by gravity.
#25
What is the acceleration of an object in uniform circular motion?
Zero
ExplanationDirection changes but speed remains constant.