Linear Motion

Front

What is linear motion?

Back

Linear motion refers to the movement of an object along a straight line, characterized by its speed and direction.

Front

Define speed in the context of linear motion.

Back

Speed is the distance traveled per unit of time, typically measured in meters per second (m/s).

Front

How do you convert kilometers per hour (km/h) to meters per second (m/s)?

Back

To convert km/h to m/s, divide the speed by 3.6.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object, measured in meters per second squared (m/s²).

Front

If a car travels 60 meters in 3 seconds, what is its speed?

Back

Speed = Distance / Time = 60 m / 3 s = 20 m/s.

Front

What is the formula for calculating acceleration?

Back

Acceleration (a) = (Final velocity (v) - Initial velocity (u)) / Time (t).

Front

What happens to the acceleration of an object at the peak of its vertical motion?

Back

The acceleration remains constant at approximately 9.8 m/s² due to gravity, even though the velocity is 0 m/s at the peak.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity (magnitude only), while velocity is a vector quantity (magnitude and direction).

Front

What is the average speed of an object?

Back

Average speed is the total distance traveled divided by the total time taken.

Front

If a squirrel reaches a speed of 5 m/s starting from rest in 2 seconds, what is its acceleration?

Back

Acceleration = (Final speed - Initial speed) / Time = (5 m/s - 0 m/s) / 2 s = 2.5 m/s².