UPCAT Review Questions Compilation

Energy stored in an object due to its position in a gravitational field.

Energy of motion.

Motion with a constant rate of change in velocity.

A more massive object does not reach water any sooner.

Constant speed in a straight line.

An environment with no air particles.

Force opposing an object moving through the air.

Energy stored in a stretched or compressed spring.

Density is a measure of how much mass is contained in a given volume. It tells us how tightly packed the matter is in an object.

The process where perfume particles spread from an area of high concentration (like your wrist) to an area of lower concentration (like the air).

Mass is the amount of matter in an object. Weight is the force of gravity acting on an object's mass.

The amount of energy transferred when a force moves an object over a distance.

The rate at which an engine does work, or the amount of work done per unit time.

An upward force exerted by a fluid (liquid or gas) on an object submerged in it. It's equal to the weight of the fluid displaced by the object.

Batteries connected in a chain, where the positive terminal of one battery is connected to the negative terminal of the next, increasing the total voltage.

An object sinks because its weight is greater than the buoyant force acting on it.

Energy stored within the chemical bonds of a substance, released during chemical reactions.

When the forces acting on an object are equal in magnitude and opposite in direction, resulting in no change in motion.

When the forces acting on an object are unequal in magnitude or direction, causing a change in motion.

A device that uses electromagnetic radiation, particularly infrared radiation, to transfer heat to objects.

An incline where no force opposes the movement of an object due to friction.

The rate of change of velocity over time. It means an object is speeding up, slowing down, or changing direction.

A car that is increasing its velocity over time.

Motion at a steady rate without any changes in velocity. This means the object is moving in a straight line at a constant pace.

A process where organisms with traits better suited to their environment survive and reproduce more successfully, passing those advantageous traits to their offspring.

The ability of bacteria to survive and multiply in the presence of antibiotics, making them ineffective.

The basic building block of all living things, responsible for carrying out essential life functions.

Characteristics that distinguish living organisms from non-living matter.

A slippery outer layer that surrounds some bacteria, protecting them from being engulfed and destroyed by immune cells.

The process by which immune cells engulf and destroy foreign invaders, such as bacteria.

The ways heat energy moves from one place to another: conduction (through direct contact), convection (through fluids), and radiation (through electromagnetic waves).

The bending of light as it passes from one medium to another (e.g., from water to air). The angle of refraction depends on how much the light bends.

Mass is the amount of matter in an object, while weight is the force of gravity acting on that mass. Mass stays constant, but weight changes depending on the gravitational pull.

An upright stick used to measure the sun's position and time by observing its shadow length.

An eclipse occurs when the Earth, Moon, and Sun are aligned in a specific way. A solar eclipse happens when the Moon blocks the Sun, and a lunar eclipse happens when the Earth blocks the Sun’s light from reaching the Moon.

Red objects absorb all wavelengths of light except red, which they reflect.

Different colors of light have different wavelengths. Red light has the longest wavelength, while violet light has the shortest.

The range of colors humans can see, from red to violet. Each color represents a different wavelength of light within the visible spectrum.

A cell that has a nucleus and other membrane-bound organelles. These are complex cells found in animals, plants, fungi, and protists.

A cell that lacks a nucleus and other membrane-bound organelles. They are simple cells found in bacteria and archaea.

A rigid outer layer that surrounds the cell membrane of plants, bacteria, fungi, and some protists. It provides structural support and protection.

A long, hair-like structure that helps cells move. It's like a whip that propels the cell through its environment.

The temperature at which an organism functions best. This is the temperature where its enzymes work most efficiently.

A molecule that stores energy. It's the 'uncharged' form of ATP and can be converted back to ATP by adding a phosphate group.

A network of protein filaments that gives the cell its shape, helps it move, and transports materials within the cell.

A complex carbohydrate that plants use to store energy. It's a long chain of sugar molecules.