Forces and Motion--5th Grade

Front

What is friction?

Back

Friction is a force that opposes the motion of an object. It can make it harder for objects to move.

Front

What is acceleration?

Back

Acceleration is the rate at which an object changes its speed. It occurs when an object is getting faster.

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object has due to its motion. It is released when an object moves.

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state.

Front

What is an unbalanced force?

Back

An unbalanced force occurs when one force acting on an object is greater than the others, causing the object to move in the direction of the greater force.

Front

What is the formula for speed?

Back

Speed = Distance ÷ Time.

Front

If a car travels 100 miles at a speed of 50 mph, how long will it take?

Back

It will take 2 hours.

Front

What is the difference between speed and velocity?

Back

Speed is how fast an object is moving, while velocity includes both speed and direction.

Front

What happens to an object in motion if no forces act on it?

Back

It will continue to move at a constant speed in a straight line due to inertia.

Front

What is inertia?

Back

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