AP Physics midterm review - Units 1,2,3

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object with respect to time. It is a vector quantity, meaning it has both magnitude and direction.

Front

How does the weight of an object change with increased rotational speed of the Earth?

Back

If the Earth increases its rotational speed, the weight of an object at the equator would decrease due to the increased centrifugal force acting outward.

Front

What does a distance vs. time graph represent for an object in uniform acceleration?

Back

A distance vs. time graph for an object in uniform acceleration is a parabola, indicating that distance increases with the square of time.

Front

What is the tension in a rope with a weight attached?

Back

The tension in a rope varies; it is equal to the weight of the object at the bottom and increases towards the top, depending on the weight of the rope itself.

Front

How do you calculate the friction force on an inclined plane?

Back

The friction force can be calculated using the formula: F_friction = F_gravity - F_net, where F_gravity is the component of gravitational force acting down the incline and F_net is the net force acting on the object.

Front

What is the formula for calculating weight?

Back

Weight (W) is calculated using the formula W = m * g, where m is mass and g is the acceleration due to gravity (approximately 9.81 m/s² on Earth).

Front

What is the relationship between speed and time for an object in uniform acceleration?

Back

For an object in uniform acceleration, the speed vs. time graph is a straight line, indicating that speed increases linearly with time.

Front

What is the significance of a free-body diagram?

Back

A free-body diagram is a graphical representation used to visualize the forces acting on an object, helping to analyze the object's motion.

Front

What is the difference between mass and weight?

Back

Mass is a measure of the amount of matter in an object (scalar quantity), while weight is the force exerted by gravity on that mass (vector quantity).

Front

What is uniform acceleration?

Back

Uniform acceleration occurs when an object's velocity changes at a constant rate over time.