SPH3UI - Newton's Laws Quiz

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1a. Which of the following terms best describes Newton's First Law? *

1 point

1b. Which of the following terms best describes Newton's Second Law? *

1 point

1c. Which of the following terms best describes Newton's Third Law? *

1 point

2. If you are standing in an elevator moving downwards and the elevator begins to slow down to stop which of the following statements best describes your experience: *

1 point

i. You feel heavier than normal

ii. You feel lighter than normal

iii. You feel the same as you did when you were travelling down at a constant rate.

3. A football is kicked vertically upwards and travels straight up before falling back to the ground. Which of the following descriptions best describes the forces acting on the ball after it is kicked as it travels upwards towards the peak of its’ flight?

1 point

i. Gravity pointing down, normal pointing up, applied pointing up, air resistance pointing down.

ii. Gravity pointing down, applied pointing up, air resistance pointing down.

iii. Gravity pointing down, air resistance pointing down.

iv. Applied pointing up, air resistance pointing down.

Clear selection

4. While driving down the road, a mosquito strikes the windshield of a bus and makes a quite obvious mess in front of the face of the driver. This is a clear case of Newton's third law of motion - The mosquito hit the bus and the bus hits the mosquito. Which of the following statements is true?

1 point

i. the force on the mosquito is greater than the force on the bus,

ii. the force on the mosquito is the same as the force on the bus,

iii. the force on the bus is greater than the force on the mosquito.

Clear selection

5. What is net force on the object shown in the diagram below?

1 point

12N

5N[Right]

4N[Right]

Clear selection

6. If the object in question #5 is accelerating at 2 m/s^2 [Right], what is it's mass?

1 point

1 kg

2 kg

4 kg

8 kg

16 kg

Clear selection

7. What is the acceleration generated by a net force of 25Newton's applied to 0.50kg object?

1 point

12.5m/s^2

25 m/s^2

50 m/s^2

100 m/s^2

200 m/s^2

Clear selection

8. Your mass is 78kg and you are carrying a backpack that has a mass of 2.6kg. If you carry your back pack with one strap over your shoulder, what is the force in Newton’s that your backpack exerts on your shoulder?

1 point

764N

740N

25N

2.6N

1.3N

Clear selection

9. During a soccer kick (i.e. while the players foot is in contact with the ball) a soccer ball is moved 1.50m and accelerates from rest to 20.0 m/s. If a soccer ball has a mass of 0.430kg, what is the force that the players foot exerts on the soccer ball during this kick?

2 points

2.87 N

4.21N

8.60 N

57.3 N

115 N

Clear selection

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