front 1 What is required to change the velocity of an object? | back 1 A force is required to change an object's velocity. |
front 2 What does an object’s change in velocity depend on? | back 2 It depends on the direction of the force exerted on the object. |
front 3 What effect does a stronger force have on velocity? | back 3 A stronger force causes a greater change in velocity. |
front 4 How does cause-and-effect help in science? | back 4 It helps you infer what led to a particular result. |
front 5 What happens when you push or pull an unmoving object? | back 5 It can make the object start moving. |
front 6 What happens when you push or pull a moving object? | back 6 It can make the object speed up, slow down, stop, or change direction. |
front 7 Do all forces have the same strength? | back 7 No, forces vary in strength. |
front 8 What does the strength of a force affect? | back 8 It affects how much an object's velocity changes. |
front 9 What is friction? | back 9 A force exerted in the opposite direction of motion, causing velocity to decrease. |