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- 1. Multiple ChoiceWhat are the units of Force?kg m/seckg mNN sec
- 2. Multiple Choice
What is the proper equation for calculating mass?
m = F*a
m = a/F
m = F+a
m = F/a
- 3. Multiple Choice
How do you calculate weight?
Weight = m/g
Weight = m+g
Weight = m
Weight = m*g
- 4. Multiple ChoiceWhat is a normal force?It always opposes gravity.
The same as a frictional force.It is equivalent to the weight of an object.It acts perpendicular to a contact surface.It is equivalent to inertia. - 5. Multiple Choice
What is the net force?5000 N right4000 N right40 N left4000 N left - 6. Multiple Choice
What is the net force of an object that is not moving?
0 N
100 N
9.81 N
- 7. Multiple Choice
Gary and Clark are pulling a crate using ropes. Gary pulls with a force of 110 N, west of north. Clark pulls with a force of 95 N, east of north. What is the net force Gary and Clark are exerting on the crate?196 N, west of north
201 N, west of north
174 N, east of north
- 8. Multiple ChoiceYou and your dad are moving the couch from one side to another. Your dad pushes with a force of 35 N to the right and you push with a force of 25 N right. What is the net force on the couch?60 N right10 N left60 n right50 N left
- 9. Multiple ChoiceAn object and rest will stay at rest and an object in motion will stay in motion unless acted on by a force, is which one of Newton's Laws of Motion?4th Law of Motion1st Law of Motion3rd Law of Motion2nd Law of Motion
- 10. Multiple ChoiceFor every action, thereʼs an equal and opposite reaction. *Action-Reaction*Newton's First LawNewton's Second LawNewton's Third Lawforce
- 11. Multiple ChoiceA force that results from two objects rubbing past each other.GravityFrictionInertiaForce
- 12. Multiple Choice
When Shiela stands on a scale at home, she measures her weight to be 735 N. When she stands on the scale in a moving elevator, she measures her weight to be 620 N. During the elevator ride, what is Shiela's apparent weight?
735 N
620 N
115 N
- 13. Multiple Choice
Stephen is riding an amusement park ride. His actual weight is 877 N. At one point during the ride, Stephen is accelerating downward at a rate of 7.75 m/s2 . What is Stephen's apparent weight during this period of acceleration?
184 N
226 N
1570 N
- 14. Multiple Choice
Caroline is on an airplane. At one point in the flight, she measures that her luggage has an apparent weight of
135 N. The actual weight of her luggage is 115 N. Which of the following best describes the vertical motion of the airplane?
The airplane is accelerating upwards at 1.71 m/s2
The airplane is accelerating downwards at 1.71 m/s2
The airplane is accelerating upwards at 21.31 m/s2
- 15. Multiple Choice
Colette is going camping in the snow. She carries all of her gear behind her on a sled. The sled has a mass of 34 kg. In order to maintain a constant velocity, Colette must pull with a force of 26.7 N. What is the coefficient of kinetic friction between the sled and the snow?
= 0.08
.14
- 16. Open Ended
Sean works in a warehouse. One day, he pushes a cardboard box of inventory across the floor. The box has a mass of 17.0 kg, and the coefficient of kinetic friction between the cardboard and the floor is 0.22 When Sean releases the box, what is the box's rate of acceleration?
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