2nd 9 WK Mid Assessment CORRECTIONS

Front

What is the definition of velocity?

Back

Velocity is the speed of an object in a specific direction.

Front

What happens to the total mass in a chemical reaction according to the law of conservation of mass?

Back

The total mass remains constant during a chemical reaction.

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion.

Front

How do you calculate acceleration?

Back

Acceleration is calculated by the change in velocity divided by the time taken.

Front

What is the net force acting on an object?

Back

The net force is the vector sum of all the forces acting on an object.

Front

What is the formula for calculating force?

Back

Force is calculated using the formula: Force = Mass x Acceleration (F = ma).

Front

What is the difference between potential energy and kinetic energy?

Back

Potential energy is stored energy based on an object's position, while kinetic energy is energy of motion.

Front

What is a precipitate in a chemical reaction?

Back

A precipitate is a solid that forms and settles out of a liquid mixture during a chemical reaction.

Front

What is the role of a balanced chemical equation?

Back

A balanced chemical equation shows that the number of atoms for each element is the same on both sides of the equation.

Front

What is the effect of friction on motion?

Back

Friction opposes the motion of an object, causing it to slow down or stop.