Review Physics 2024

Front

What is the formula for calculating speed?

Back

Speed = \frac{distance}{time}

Front

What does Hooke's Law state?

Back

Hooke's Law states that the force exerted by a spring is directly proportional to the extension of the spring: F = kx.

Front

If two forces acting on an object are 3N and 8N, what is the third force if the object is not accelerating?

Back

The third force must be 5N.

Front

What is the missing force when the forces acting on an object are balanced?

Back

The missing force is the applied force.

Front

What is the unit of measurement for force?

Back

The unit of measurement for force is Newton (N).

Front

Define force in physics.

Back

Force is an interaction that causes an object to change its velocity, direction, or shape.

Front

What is the formula for calculating weight?

Back

Weight = mass \times gravitational\ acceleration (W = mg) where g is approximately 9.81 m/s² on Earth.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.

Front

What is the principle of conservation of energy?

Back

The principle states that energy cannot be created or destroyed, only transformed from one form to another.

Front

What is kinetic energy and how is it calculated?

Back

Kinetic energy is the energy of an object in motion, calculated as KE = \frac{1}{2}mv^2.