#1
Which of the following is a unit of measurement for distance?
Meter
ExplanationMeter is the SI unit of distance.
#2
What is the formula to calculate speed?
Speed = Distance / Time
ExplanationSpeed is calculated by dividing distance traveled by the time taken.
#3
What is the SI unit of force?
Newton
ExplanationNewton is the SI unit of force.
#4
Which of the following is a scalar quantity?
Distance
ExplanationDistance is a scalar quantity as it only has magnitude and no direction.
#5
What is the SI unit of time?
Second
ExplanationSecond is the SI unit of time.
#6
Which of the following is a measure of the inertia of an object?
Mass
ExplanationMass is a measure of an object's inertia, representing its resistance to changes in motion.
#7
Which of the following represents a vector quantity?
Acceleration
ExplanationAcceleration has both magnitude and direction, making it a vector quantity.
#8
What is the acceleration of an object if it increases its velocity from 10 m/s to 30 m/s in 5 seconds?
6 m/s²
ExplanationAcceleration is the change in velocity divided by the time taken.
#9
Which of the following is an example of uniform motion?
A train moving with constant speed on a straight track
ExplanationUniform motion is when an object travels with constant speed in a straight line.
#10
What is the equation to calculate displacement?
Displacement = Final Velocity - Initial Velocity
ExplanationDisplacement is the change in position and is calculated as the difference between final and initial velocities.
#11
What is the formula to calculate average velocity?
Average Velocity = Displacement / Time
ExplanationAverage velocity is calculated by dividing displacement by the time taken.
#12
What does the slope of a distance-time graph represent?
Velocity
ExplanationThe slope of a distance-time graph represents the object's velocity.
#13
A car travels 100 kilometers in 2 hours. What is its average speed?
60 km/h
ExplanationAverage speed is calculated by dividing total distance by total time.
#14
If a ball is thrown vertically upwards, what is its acceleration at the highest point of its trajectory?
9.8 m/s² downward
ExplanationAt the highest point, the ball's acceleration is equal to the acceleration due to gravity, directed downward.
#15
What is the difference between velocity and speed?
Velocity has direction while speed does not.
ExplanationVelocity is a vector quantity, indicating both speed and direction, whereas speed is a scalar quantity.
#16
A car accelerates uniformly from rest to a velocity of 20 m/s in 10 seconds. What is its acceleration?
5 m/s²
ExplanationAcceleration is the change in velocity divided by the time taken.
#17
In which of the following cases is work done on an object?
Lifting a box off the ground
ExplanationWork is done when a force is applied to move an object over a distance.
#18
What is the relationship between velocity and acceleration?
Acceleration is the derivative of velocity
ExplanationAcceleration is the rate of change of velocity with respect to time.