1.explain frame of reference. how is it different when you are riding inside a car or standing by the highway? 2. explain newton’s three laws of motion. 3. when riding in a car that suddenly stops, how is it different when you are wearing a seatbelt or not? explain how newton’s laws apply. 4. define force. 5. explain balanced and unbalanced force. 6. describe the four fundamental forces? arrange them from weakest to strongest. 7. what is work and power and their relationship?