1. If an object accelerates, a push or pull must be acting on it. 2. Any object with mass has inertia 3. Mass is a measure of an object's inertia. 4. Objects with greater mass have a great inertia. 5. The speed of an object has an effect on the amount of inertia it has. 6. Inertia (or mass) has to do with gravity. 1. T 2. T 3. T 4. T 5. F 6. F