Activity 1.0 Across: 2. He is the Father of Modern Physics 5. It is the SI unit of force. 6. It is the action of changing location or position. 4 7. It is also known as stored energy. 9 Down: 1. It is a quantitative measure of inertia 3. It is the rate at which an object changes 3 its position. 1 4. It is from initial first point to final second point. 2 B. It is a push or pull upon an object 9. He proposed natural & violent motion