Forces and Motion Unit Test

Front

What do you call a change in an object's position?

Back

Motion is defined as a change in an object's position over time.

Front

What is the term for any change in an object's speed or direction?

Back

Acceleration refers to the rate of change of velocity of an object.

Front

What happens to an object when balanced forces act on it?

Back

When balanced forces act on an object, it remains stationary or continues to move at a constant speed.

Front

What causes objects to move?

Back

Unbalanced forces are responsible for causing objects to accelerate or change their motion.

Front

What is the term for the force that opposes motion between two surfaces in contact?

Back

Friction is the force that opposes the relative motion of two surfaces in contact.

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 acceleration?

Back

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

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 gravitational force?

Back

Gravitational force is the attractive force between two masses, such as the Earth and an object.

Front

What is the relationship between mass and weight?

Back

Weight is the force exerted by gravity on an object, calculated as weight = mass × gravity.