Physical Science final

Front

What is the formula to calculate force?

Back

Force = Mass × Acceleration (F = m × a)

Front

What is Newton's 2nd Law of Motion?

Back

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.

Front

What is the definition of Absolute Zero?

Back

Absolute Zero is the lowest possible temperature, measured at -273.15 degrees Celsius or 0 Kelvin.

Front

What is a synthesis reaction?

Back

A synthesis reaction is a type of chemical reaction where two or more substances combine to form a new substance.

Front

How does kinetic energy change with speed?

Back

Kinetic energy is proportional to the square of the speed; if speed doubles, kinetic energy increases by a factor of four.

Front

What is the unit of force in the International System of Units (SI)?

Back

The unit of force is the Newton (N).

Front

What is the relationship between mass and acceleration in Newton's 2nd Law?

Back

A larger mass requires a greater force to achieve the same acceleration compared to a smaller mass.

Front

What is the formula for kinetic energy?

Back

Kinetic Energy (KE) = 0.5 × Mass × Velocity² (KE = 1/2 mv²).

Front

What is the significance of the Kelvin scale in temperature measurement?

Back

The Kelvin scale starts at Absolute Zero and is used in scientific contexts to measure thermodynamic temperature.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.