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- 1. Multiple ChoiceThe force that one surface exerts on another when the two surfaces rub against each otherSpeedForceNet forceFriction
- 2. Multiple ChoiceAccording to Newton’s first law of motion, a moving object that is not acted on by an unbalanced force willremain in motion.eventually come to a stop.change its momentum.accelerate.
- 3. Multiple ChoiceThe SI units for force are...KilogramsNewtonsMeters per secondPounds
- 4. Multiple ChoiceAn object at rest will _______ if no outside forces are applied.Stay at restIncrease VelocityDecrease Mass
- 5. Multiple ChoiceIf a force of 26 N is exerted on two balls, one with a mass of 0.52 kg and the other with a mass of 0.78 kg, which ball will have the greater acceleration? (F=ma)The one with a mass of .78 kg will have the greatest acceleration.The one with a mass of .52 kg will have the greatest acceleration.They will both accelerate at the same rate.
- 6. Multiple ChoiceIf you exert a net force of 8 N on a 2-kg object, what will its acceleration be?2 m/s24 m/s216 m/s210 m/s2
- 7. Multiple ChoiceIf two forces of the same magnitude are acting on an object in the same direction, the resultant force will become zero. True or false?truefalse
- 8. Multiple Choice
What is the net force?400 N Up400 N Down- 400 N Down800 N Down - 9. Multiple ChoiceKeep in mind F=ma
If you are pushing a 1000 kg car and it accelerates at 0.5 m/s^2, what is the resultant force on the car?2000 N60N500 N12 N - 10. Multiple ChoiceA bicycle rider travels 100 kilometres in 4 hours. What is the cyclist's average speed?400 km/h25 km/h104 km/h0.025 km/h
- 11. Multiple ChoiceHow would you describe the motion of the object?Constant SpeedAcceleration (speeding up)Deceleration (slowing down)No motion
- 12. Multiple Choice1000 kg is the _______ of an object.massweightforceacceleration
- 13. Multiple Choice45 m/s2 is the...MassForceAccelerationweight
- 14. Multiple ChoiceA dragster race car is able to accelerate from 4 m/s to 60 m/s in 2.5 seconds. What is the dragsters acceleration?22.4 m/s 224 m/s 2240 m/s 2600 m/s 2
- 15. Multiple ChoiceWhat is the magnitude (size) and direction of the net force?21 N to the Left3 N to the Left21 N to the Right3 N to the Right
- 16. Multiple ChoiceWhat is the magnitude (size) and direction of the net force?10 N to the Right10 N to the Left0 N8 N to the Left
- 17. Multiple ChoiceWhat is the magnitude (size) and direction of the net force?14 N Down14 N Up6 N Up6 N Down
- 18. Multiple ChoiceWhat is the magnitude (size) and direction of the net force?15 N to the left15 N to the right1 N to the left1 N to the right
- 19. Multiple ChoiceWhat is the net force needed to accelerate a 66 kg skier at 2 m/s2?132 N33 N58.8 N.030 N
- 20. Multiple ChoiceA net force of 250 N is applied to an object that accelerates at a rate of 5 m/s2. What is the mass of the object?50 kg245 kg.02 kg25.5 kg
- 21. Multiple ChoiceWhat is the unit for velocity?m/seckg/seckg/mkg m/sec
- 22. Multiple ChoiceWhat is the unit for acceleration?m/sm/s2kg*m/sN
- 23. Multiple ChoiceWhat is the unit for mass?m/seckg/seckgkg m/sec
- 24. Multiple ChoiceWhat are the units of Force?kg*m/seckg*mNN*sec
- 25. Multiple ChoiceWhich of Newton's laws is the reason why a gun 'kicks' backward when a bullet is fired?Law 1Law 2Law 3
- 26. Multiple ChoiceWhy law states that an object at rest tends to stay at rest unless an outside force acts upon it?Law 1Law 2Law 3
- 27. Multiple ChoiceWhich law explains why it takes more force to move a truck than to move a bike at the same rate of acceleration?Law 1Law 2Law 3
- 28. Multiple ChoiceYou push on a tree with 20 N of force. If the tree doesn't move, the tree is pushing back on you with _____of force.20N40N10N70N
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