A catalyst lowers the activation energy of a reaction, thereby increasing the reaction rate.

A catalyst does not affect the equilibrium constant; it only speeds up the rate at which equilibrium is reached.

A catalyst does not affect the position of equilibrium; it only speeds up the rate at which equilibrium is reached.

Inserting a dielectric material increases the capacitance of a capacitor by reducing the electric field within it.

Inserting a dielectric material between the plates of a capacitor decreases the electric field due to polarization.

Inserting a dielectric material into a capacitor decreases the electric field inside the capacitor due to polarization.

A charged particle moving perpendicular to a magnetic field experiences a magnetic force that acts perpendicular to both the velocity and the magnetic field, causing it to move in a circular path.

A current-carrying conductor placed in a magnetic field experiences a force due to the interaction between the magnetic field and the current.

A magnetic field exerts a force only on moving charges; therefore, a stationary charge experiences no force.

The addition of a non-volatile solute raises the boiling point of the solvent, a phenomenon known as boiling point elevation.

A polarizer decreases the intensity of unpolarized light by allowing only a certain orientation of light waves to pass through.

A quarter-wave plate converts linearly polarized light into circularly polarized light by introducing a phase shift of 90 degrees.

When a second polarizer is oriented at 90 degrees to the first, it blocks all the light, reducing the intensity to zero.

When a second polarizer is oriented at 90 degrees to the first, no light passes through.

When light passes through a second polarizer at 90 degrees to the first, the intensity is reduced to zero.

A strong magnetic field can cause deviation in the compass reading, leading to inaccuracies.

A vertical stretch occurs when the output values of a function are multiplied by a factor greater than 1, causing the graph to stretch away from the x-axis.

Acids turn blue litmus paper red.

Adding a base to a weak acid will neutralize some of the acid, increasing the pH.

Adding a base to hydrochloric acid will neutralize it, resulting in an increase in pH.

Adding a base to an acidic solution increases the pH, making it less acidic.

A catalyst speeds up the rate of both the forward and reverse reactions equally, thus having no effect on the position of equilibrium.

A catalyst increases the rate of both the forward and reverse reactions equally, thus it does not shift the position of equilibrium.

Adding a common ion decreases the solubility of a salt due to the common ion effect, which shifts the equilibrium to the left.

Adding a common ion decreases the solubility of a salt in a saturated solution due to the common ion effect.

Adding a non-volatile solute increases the boiling point due to boiling point elevation.

Adding a non-volatile solute decreases the vapor pressure of the solvent due to the solute particles occupying space at the surface.

Adding a non-volatile solute decreases the vapor pressure of the solvent due to the reduction in the mole fraction of the solvent.

Adding a non-volatile solute to a solvent increases the boiling point of the solution due to the colligative property of boiling point elevation.

Adding a solute to a solvent increases the boiling point of the solution, a phenomenon known as boiling point elevation.