Unit 2 MC Review

Front

What does it mean for an object to be slowing down?

Back

An object is slowing down when its velocity decreases over time, which can be represented by a force diagram showing a net force acting opposite to its direction of motion.

Front

What does it mean for an object to accelerate to the left?

Back

An object accelerates to the left when the net force acting on it is directed to the left, resulting in an increase in its velocity in that direction.

Front

What is the force of gravity (Fg)?

Back

The force of gravity (Fg) is the force that attracts two bodies towards each other, commonly experienced as the weight of an object due to Earth's gravitational pull.

Front

What happens to an object in motion when there are no forces acting on it?

Back

An object in motion will continue to move at a constant velocity if no net external forces act on it, according to Newton's first law of motion.

Front

What is a force diagram?

Back

A force diagram is a visual representation that shows all the forces acting on an object, including their directions and magnitudes.

Front

What is the relationship between net force and acceleration?

Back

The net force acting on an object is directly proportional to its acceleration, as described by Newton's second law of motion (F=ma).

Front

What does it mean to be 'weightless'?

Back

Being 'weightless' means that the force of gravity (Fg) acting on an object is effectively zero, often experienced in free-fall situations.

Front

What is friction?

Back

Friction is a force that opposes the relative motion of two surfaces in contact, acting parallel to the surfaces.

Front

What is constant velocity?

Back

Constant velocity means that an object is moving at a fixed speed in a straight line, with no acceleration.

Front

What is the significance of a net force of zero?

Back

A net force of zero indicates that all forces acting on an object are balanced, resulting in no change in motion.