Physics Motion Flashcard 12

Front

What is velocity?

Back

Velocity is the speed of an object in a specific direction.

Front

What is acceleration?

Back

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

Front

How do you calculate final velocity with constant acceleration?

Back

Final velocity (v) can be calculated using the formula: v = u + at, where u is the initial velocity, a is acceleration, and t is time.

Front

What is the formula for average acceleration?

Back

Average acceleration is calculated as: a = (final velocity - initial velocity) / time.

Front

What does a constant speed graph look like?

Back

A constant speed graph is a straight line on a position-time graph.

Front

If a car accelerates at 2 m/s², how long will it take to reach 20 m/s from rest?

Back

It will take 10 seconds.

Front

What is the average acceleration of a car that goes from 0 to 42 m/s in 7 seconds?

Back

The average acceleration is 6 m/s².

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.

Front

What is a position-time graph?

Back

A position-time graph shows the position of an object at different times and can indicate speed and direction of motion.

Front

How do you interpret a displacement graph?

Back

A displacement graph shows how the position of an object changes over time, indicating whether it is moving forward or backward.