8th Grade Forces & Motion

Front

What is gravitational attraction?

Back

Gravitational attraction is the force that pulls two masses toward each other. The strength of this force depends on the masses of the objects and the distance between them.

Front

What direction does friction act in relation to movement?

Back

Friction acts in the opposite direction of movement.

Front

What is Newton's 1st Law of Motion?

Back

Newton's 1st Law states that an object at rest will stay at rest, and an object in motion will stay in motion at a constant velocity unless acted upon by a net external force.

Front

How is average speed calculated?

Back

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

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion. The more mass an object has, the more inertia it possesses.

Front

What is the relationship between mass and gravitational attraction?

Back

The greater the mass of an object, the stronger its gravitational attraction to other objects.

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 acceleration?

Back

Acceleration is the rate of change of velocity of an object. It can occur due to a change in speed or direction.

Front

What is the formula for calculating force?

Back

Force is calculated using the formula: Force = Mass x Acceleration (F = ma).

Front

What is the effect of friction on motion?

Back

Friction opposes motion, causing objects to slow down or stop when they are in contact with each other.