tttest1

Front

What does a steep upward curve in a position vs. time graph indicate about velocity?

Back

Velocity is increasing.

Front

How do you calculate acceleration if a car starts from rest and reaches a speed of 20 m/s in 4 seconds?

Back

Acceleration = \frac{\Delta v}{\Delta t} = \frac{20 m/s - 0 m/s}{4 s} = 5 m/s^2.

Front

In a position vs. time graph, what does the slope represent?

Back

The slope represents velocity.

Front

What is the formula for calculating acceleration?

Back

Acceleration = \frac{\Delta v}{\Delta t}.

Front

If an object is moving with constant velocity, what does its position vs. time graph look like?

Back

It is a straight line with a constant slope.

Front

What does a horizontal line in a position vs. time graph indicate?

Back

The object is at rest.

Front

How can you determine if an object is accelerating from a position vs. time graph?

Back

If the graph is curving, the object is accelerating.

Front

What is the relationship between velocity and displacement in a position vs. time graph?

Back

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

Front

What does a negative slope in a position vs. time graph indicate?

Back

The object is moving in the opposite direction.

Front

If a car accelerates from 10 m/s to 30 m/s in 5 seconds, what is its acceleration?

Back

Acceleration = \frac{30 m/s - 10 m/s}{5 s} = 4 m/s^2.