Forces and Motion Flashcard - 8th Grade Unit 3 2022

Front

What is friction?

Back

Friction is a force that opposes the motion of an object, making it harder to move or pull it.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion. An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net force.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object. It occurs when an object speeds up, slows down, or changes direction.

Front

What is momentum?

Back

Momentum is the product of an object's mass and its velocity. It is a measure of how difficult it is to stop a moving object.

Front

What does a motion graph showing a straight horizontal line represent?

Back

A straight horizontal line on a motion graph represents that the object is not moving.

Front

What does a steep slope on a motion graph indicate?

Back

A steep slope on a motion graph indicates a high speed or high acceleration.

Front

What is net force?

Back

Net force is the total force acting on an object after all the individual forces are combined. It determines the object's acceleration.

Front

What does balanced forces mean?

Back

Balanced forces occur when two or more forces acting on an object are equal in size and opposite in direction, resulting in no change in motion.

Front

How do you calculate acceleration?

Back

Acceleration can be calculated using the formula: a = (final velocity - initial velocity) / time.

Front

What is the unit of acceleration?

Back

The unit of acceleration is meters per second squared (m/s²).