Forces and Motion Lesson 1 & 2 Review

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 when an object speeds up, slows down, or changes direction.

Front

What is a contact force?

Back

A contact force is a force that occurs when two objects are physically touching each other.

Front

What unit is used to measure distance?

Back

Kilometers (km) is a unit used to measure distance.

Front

What are unbalanced forces?

Back

Unbalanced forces are forces that cause an object to accelerate in the direction of the net force acting on it.

Front

What is the formula for calculating speed?

Back

Speed = Distance / Time.

Front

What is the role of friction in motion?

Back

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

Front

What is the difference between balanced and unbalanced forces?

Back

Balanced forces do not cause a change in motion, while unbalanced forces result in acceleration.

Front

What is inertia?

Back

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

Front

What is the effect of gravity on motion?

Back

Gravity is a force that pulls objects toward each other, affecting their motion and causing them to accelerate downward.