What is a Force?(pages 356-357) __ that acts on an object. 1. A force is defined as a(n) __ or a(n) 2. Is the following sentence true or false? A force can act to cause an at rest to move or it can accelerate an object that is already moving. __ that is already moving? __ 4. Circle the letter of the best answer. What force causes a 1-kg mass to accelerate at a rate of 1 meter per second each second? a 1kg/mcdot s^2 b. 1kg/s c. 1kgbullet m d. 1 newton Combining Forces (pages 357-358) 5. The overall force acting on an object after all the forces are combined is the __ 6. How do balanced and unbalanced forces affect the motion of an object? __

1. A force is defined as a(n) **push** or a(n) **pull** that acts on an object.<br /><br />2. Is the following sentence true or false? A force can act to cause an object at rest to move or it can accelerate an object that is already moving. **True**<br /><br />3. What force causes a 1-kg mass to accelerate at a rate of 1 meter per second each second?<br /> - Circle the letter of the best answer:<br /> a. \(1 \, \text{kg/m} \cdot \text{s}^{2}\)<br /> b. \(1 \, \text{kg/s}\)<br /> c. \(1 \, \text{kg} \bullet \text{m}\)<br /> d. **1 newton**<br /><br />Combining Forces (pages 357-358)<br /><br />5. The overall force acting on an object after all the forces are combined is the **net force**.<br /><br />6. How do balanced and unbalanced forces affect the motion of an object?<br /> - **Balanced forces**: When forces are balanced, they cancel each other out and do not change the motion of the object. The net force is zero, so there is no acceleration.<br /> - **Unbalanced forces**: When forces are unbalanced, they do not cancel each other out, resulting in a net force that causes the object to accelerate in the direction of the net force.