Physics CAST Review #1

Front

What is net force?

Back

Net force is the overall force acting on an object when all the individual forces acting on it are combined. It determines the object's acceleration according to Newton's second law of motion.

Front

What is the formula for calculating displacement?

Back

Displacement = Velocity × Time. It measures the change in position of an object.

Front

What does it mean for a measurement to be accurate?

Back

Accuracy refers to how close a measured value is to the true value or the actual quantity being measured.

Front

How does padding in a helmet protect a football player?

Back

The padding compresses during an impact, increasing the time over which the collision occurs, which reduces the force experienced at any moment.

Front

What is the relationship between speed, distance, and time?

Back

Speed = Distance / Time. This formula shows how distance traveled is related to the speed of an object and the time taken.

Front

What is the significance of a constant rate in a graph?

Back

A constant rate indicates that as one variable increases, the other variable increases at a steady rate, resulting in a linear relationship.

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 inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion. It is directly related to the mass of the object.

Front

What is the principle of conservation of momentum?

Back

The principle states that in a closed system, the total momentum before an event is equal to the total momentum after the event, provided no external forces act on it.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object. It can be caused by a change in speed or direction.