AP Physics Midterm Review 2023

Front

What is the relationship between force of gravity and mass?

Back

The force of gravity is directly proportional to mass. This means that as mass increases, the gravitational force also increases.

Front

What does a velocity-time graph indicate when the line is sloping upwards?

Back

When the line is sloping upwards in a velocity-time graph, the object is speeding up.

Front

How do you calculate net force when given mass and acceleration?

Back

Net force can be calculated using Newton's second law: F = m * a, where F is the net force, m is the mass, and a is the acceleration.

Front

What are the three forces acting on a block on a flat surface?

Back

The three forces are gravitational force (W), normal force (N), and frictional force (f). Gravitational force acts downward, normal force acts upward, and frictional force acts opposite to the direction of motion.

Front

What factors affect the period of a pendulum?

Back

The period of a pendulum is affected by the length of the string and the acceleration due to gravity. The mass of the pendulum does not affect the period.

Front

Define gravitational force.

Back

Gravitational force is the attractive force between two masses. It is proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

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 does it mean for an object to have constant velocity?

Back

An object has constant velocity when it moves at a steady speed in a straight line, meaning its speed and direction do not change.

Front

How do you determine if an object is accelerating?

Back

An object is accelerating if its velocity is changing, which can be indicated by a change in speed or direction.

Front

What is the significance of the slope in a velocity-time graph?

Back

The slope of a velocity-time graph represents acceleration. A steeper slope indicates greater acceleration.