# North Carolina Science Grade 7

## Chapter 12: Motion and Momentum

### Calculating Momentum

 1. Calculate the momentum of a 16-kg bicycle traveling north at 3 m/s. A) 42 kg·m/s north B) 24 kg·m/s north C) 48 kg·m/s north D) 46 kg·m/s north 2. Calculate the momentum of a 12-kg bicycle traveling east at 2 m/s. A) 28 kg·m/s east B) 24 kg·m/s east C) 30 kg·m/s east D) 36 kg·m/s east 3. Calculate the momentum of a 13.5-kg bicycle traveling south at 3 m/s. A) 40.5 kg·m/s south B) 43.5 kg·m/s south C) 48.5 kg·m/s south D) 50.0 kg·m/s south 4. What is the momentum of a train with a mass of 11,000 kg traveling east at 17 m/s? A) 190,000 kg·m/s east B) 197,000 kg·m/s east C) 182,000 kg·m/s east D) 187,000 kg·m/s east 5. What is the momentum of a train with a mass of 12,000 kg traveling north at 18 m/s? A) 210,000 kg·m/s north B) 222,000 kg·m/s north C) 216,000 kg·m/s north D) 190,000 kg·m/s north 6. What is the momentum of a train with a mass of 11,500 kg traveling west at 14.5 m/s? A) 170,850 kg·m/s west B) 166,600 kg·m/s west C) 180,750 kg·m/s west D) 166,750 kg·m/s west 7. What is the momentum of a train with a mass of 18,000 kg traveling east at 13 m/s? A) 234,000 kg·m/s east B) 240,000 kg·m/s east C) 233,400 kg·m/s east D) 234,500 kg·m/s east 8. A 1000-kg car is traveling south at 14 m/s. Calculate the momentum of the car. A) 14,500 kg·m/s south B) 14,000 kg·m/s south C) 15,000 kg·m/s south D) 13,400 kg·m/s south 9. A 1200-kg car is traveling west at 15 m/s. Calculate the momentum of the car. A) 16,000 kg·m/s west B) 15,500 kg·m/s west C) 18,000 kg·m/s west D) 18,800 kg·m/s west 10. A 1400-kg car is traveling north at 13 m/s. Calculate the momentum of the car. A) 18,200 kg·m/s north B) 18,500 kg·m/s north C) 19,200 kg·m/s north D) 8,500 kg·m/s north