Semester 1

Front

What is a wedge in simple machines?

Back

A wedge is a simple machine that converts a downward force into a horizontal force, useful for splitting objects apart.

Front

What does a balanced force mean in physics?

Back

A balanced force occurs when two forces acting on an object are equal in size but opposite in direction, resulting in no change in motion.

Front

How do you determine net force?

Back

Net force is the vector sum of all forces acting on an object. It can be calculated by adding forces in the same direction and subtracting forces in the opposite direction.

Front

What does a stationary graph look like?

Back

A stationary graph shows no change in position over time, represented by a horizontal line.

Front

Who discovered the law of gravity?

Back

Sir Isaac Newton is credited with the discovery of gravity and formulated the law of universal gravitation.

Front

What is a lever?

Back

A lever is a simple machine that consists of a rigid bar that pivots around a fixed point called the fulcrum, used to lift or move loads.

Front

What is a pulley?

Back

A pulley is a simple machine that consists of a wheel on an axle or shaft designed to support movement and change the direction of force.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object, occurring when two surfaces come into contact.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion, related to its mass.