When was the last time you had an epiphany sitting under an apple tree? In this physics lesson, learn Newton's First Law, and review the definition of force.

When you're in an elevator, can you tell you're moving? The answer to this physics question, clearly, involves forces! Learn to calculate force in newtons.

When a car and fly collide, why is the car fine while the bug is obliterated? Newton's third law of motion offers offers a clue, but the answer is surprising!