Test study guide: Forces & Motion

Front

What is friction?

Back

Friction is a force that opposes the motion of an object, acting in the opposite direction to the movement.

Front

What does Newton's 3rd Law state?

Back

For every action, there is an equal and opposite reaction.

Front

What happens when forces are balanced?

Back

When forces are balanced, an object remains at rest or continues to move at a constant speed in a straight line.

Front

What does it mean if an object is accelerating?

Back

If an object is accelerating, it means that the forces acting on it are unbalanced, causing a change in its speed or direction.

Front

How do you calculate average speed?

Back

Average speed is calculated by dividing the total distance traveled by the total time taken.

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 inertia?

Back

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

Front

What is the formula for calculating force?

Back

Force is calculated using the formula: Force = Mass x Acceleration (F = m*a).

Front

What is gravitational force?

Back

Gravitational force is the attraction between two objects due to their mass, commonly experienced as weight.

Front

What is the role of air resistance?

Back

Air resistance is a type of friction that acts against the motion of an object moving through the air, slowing it down.