AP Physics I - Unit 1

Front

What is displacement?

Back

Displacement is the vector quantity that represents the change in position of an object. It is defined as the shortest distance from the initial to the final position, along with the direction.

Front

How do you calculate displacement from a velocity-time graph?

Back

Displacement can be calculated by finding the area under the velocity-time graph. This can involve calculating the area of different shapes (rectangles, triangles) depending on the graph.

Front

What is the formula for average velocity?

Back

Average velocity is calculated as the total displacement divided by the total time taken. Formula: v_avg = Δx / Δt.

Front

What does a flat line on a position-time graph indicate?

Back

A flat line on a position-time graph indicates that the object is at rest, meaning its position is not changing over time.

Front

What is the significance of the slope of a position-time graph?

Back

The slope of a position-time graph represents the velocity of the object. A steeper slope indicates a higher velocity.

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

How do you determine the speed of an object from a position-time graph?

Back

The speed of an object can be determined by calculating the slope of the line on the position-time graph. The steeper the slope, the faster the object is moving.

Front

What is a force?

Back

A force is a push or pull acting upon an object as a result of its interaction with another object. It is a vector quantity, having both magnitude and direction.

Front

What are the four fundamental forces in nature?

Back

The four fundamental forces are gravitational force, electromagnetic force, strong nuclear force, and weak nuclear force.

Front

What is frictional force?

Back

Frictional force is the force that opposes the relative motion of two surfaces in contact. It acts parallel to the surfaces.