Physics Equations and Formulas

What quantity is calculated by determining the gradient of a distance-time graph?

Negative acceleration, also known as deceleration, indicates that an object's velocity is increasing over time.

What term describes the distance traveled with a specified direction?

The area under a velocity-time graph represents the ______ traveled by an object.

Match the following terms with their corresponding descriptions:

Which of the following is a vector quantity?

If the forces acting on an object are balanced, the object will always remain stationary.

According to Hooke's Law, what is the relationship between the force applied to a spring and its extension, assuming the elastic limit is not exceeded?

The force that opposes the motion of objects and occurs when they rub against each other is called ______.

Match each type of force with its description.

What happens to a spring if it is stretched beyond its elastic limit?

The acceleration of an object depends only on the mass of the object, not the unbalanced force acting upon it.

What term is used to describe the motion of an object when the air resistance equals the weight of the object?

The distance a car travels during the driver's reaction time is called the ______ distance.

Match the situation with the correct distance type.

Seatbelts and crumple zones in cars increase the time of impact during a collision. How does this affect the force experienced by the passengers?

Momentum is a scalar quantity that measures how difficult it is to stop a moving object.

According to Newton's Third Law, for every action there is an equal and opposite what?

The point around which an object turns when a force is applied is called the ______.

Match the terms with its definition.

What condition must be met for an object to be in balance?

Power is measured in joules.

What type of current involves voltage or currents that are always in the same direction?

In electrical safety, the ______ wire protects the user by providing a safe route for current to flow if there is a fault.

Associate the following with the correct electrical component:

Why is a strong current essential when earthing a metal case of an electrical appliance?

Insulators allow electrons to flow easily through them.

In the context of circuits, what is measured in ohms?

According to Ohm's Law, the current flowing in a circuit is directly proportional to the applied ______ and inversely proportional to the resistance.

Relate the type of resistor to the function:

Which of the following particles has a negative charge?

Like charges attract each other, while unlike charges repel.

What is the SI unit of charge?

The ______ is the distance between a point on one wave to the corresponding point on the next wave.

Link wave properties with its definition:

What type of wave requires a medium to travel through?

Longitudinal waves oscillate perpendicular to the direction of energy transfer.

What is the name for high-pressure section of a longitudinal wave?

The angle at which a refracted ray is parallel to the surface of the material is called the ______ angle.

Match the component or definition with the type of wave.

What happens when the angle of incidence is greater than the critical angle?

The efficiency of an energy conversion system can be greater than 100% if the system is well-insulated.