Physics Mid-term Test 2024

Front

What is the formula to calculate displacement?

Back

Displacement = Final Position - Initial Position.

Front

Define velocity.

Back

Velocity is the rate of change of displacement with respect to time, including direction.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity with respect to time.

Front

What is free fall?

Back

Free fall is the motion of an object under the influence of gravitational force only.

Front

Define projectile motion.

Back

Projectile motion is the motion of an object thrown into the air, subject to only the acceleration of gravity.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity representing how fast an object moves, while velocity is a vector quantity that includes direction.

Front

How do you calculate the time taken for an object to accelerate?

Back

Time = (Final Velocity - Initial Velocity) / Acceleration.

Front

What does it mean when an object's velocity is zero?

Back

It means the object is at rest or not moving.

Front

What is the significance of the negative sign in velocity?

Back

A negative velocity indicates that the object is moving in the opposite direction to the defined positive direction.

Front

What is the formula for calculating distance fallen under gravity?

Back

Distance = 0.5 * g * t^2, where g is the acceleration due to gravity (approximately 9.81 m/s²) and t is time.