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- 1. Multiple Choice
Rockets are launched into space using jet propulsion where exhaust accelerates out from the rocket and the rocket accelerates in an opposite direction.
The Law of Inertia
The Law of Acceleration
The Law of action and reaction
- 2. Multiple Choice
Which law states that the acceleration of an object depends on the force exerted on it and its mass?
1st Law
2nd Law
3rd Law
- 3. Multiple Choice
Which activity would BEST demonstrate Newton's law of Inertia?
A plate sits on a table top.
A lady pushes a grocery cart.
A child jumps on a trampoline.
A boy swings a baseball bat.
- 4. Multiple Choice
When there is an INCREASE in MASS of an object you will have a DECREASE in ______________.
friction
acceleration
force
gravity
- 5. Multiple Choice
Mary is riding in a car when the driver suddenly slams on the brakes. Mary is jerked forward out of her seat. This is an example of which law of motion?
2nd Law
1st Law
3rd Law
- 6. Multiple Choice
A jellyfish swims through the water by pulling in water and then pushing the water back out in the opposite direction. This is an example of which law of motion?
1st Law
2nd Law
3rd Law
- 7. Multiple Choice"An object in motion (or at rest) will to stay in motion (or at rest) until an outside force acts upon it."Newton's 1st LawNewton's 2nd LawNewton's 3rd LawNewton's 4th Law
- 8. Multiple ChoiceForce = Mass x AccelerationNewton's 1st LawNewton's 2nd LawNewton's 3rd LawNewton's 4th Law
- 9. Multiple Choice"For every action, there is an equal and opposite reaction."Newton's 1st LawNewton's 2nd LawNewton's 3rd LawNewton's 4th Law
- 10. Multiple Choice
According to Newton's Second Law, How do you calculate mass?
Multiply mass and acceleration
Divide force by acceleration
Divide acceleration by mass
Divide force by mass
- 11. Multiple Choice
According to Newton's Second Law, How do you calculate acceleration?
Multiply mass and acceleration
Divide force by acceleration
Divide acceleration by mass
Divide force by mass
- 12. Multiple Choice
According to Newton's Second Law, How do you calculate force?
Multiply mass and acceleration
Divide mass by acceleration
Divide acceleration by mass
Divide force by mass
- 13. Multiple Choice45 m/s2 is the...MassForceAccelerationweight
- 14. Multiple ChoiceWhat is the formula for force?F=M/AF=A/MF=M*AF=M*F
- 15. Multiple ChoiceWhat is the tendency of an object to resist a change in motion?coffeemotioninertiagravity
- 16. Multiple ChoiceWhich law explains why you need to wear a seat belt?FirstSecondThirdGravity
- 17. Multiple ChoiceA 50 kg ball rolls down the street at 5 m/s. Calculate the momentum of the ball.55 kg*m/s100 kg*m/s250 kg*m/s500 kg*m/s
- 18. Multiple Choice
Two skaters begin at rest. Skater 1 has a smaller mass than Skater 2. After they push off each other,...
Skater 1 experiences a greater change in momentum
Skater 2 experiences a greater change in momentum
Skater 1 has a greater speed than Skater 2
Skater 1 experiences a greater force
- 19. Multiple Choice
If there were no friction and the cart is going at a constant speed, what happens to the speed of the wagon as the rain collects inside of it?
it decreases
it remains constant
it increases
- 20. Multiple Choice
Which of the following has the MOST momentum?
rolling ping-pong ball
rolling bowling ball
rolling soccer ball
rolling basketball
- 21. Multiple Choice
If an object has a momentum of 40 kgm/s and a mass of 60 kg, what is it's velocity?
2400 m/s
1.5 m/s
240 m/s
.67 m/s
- 22. Multiple Choice
If an object has a velocity of 15 m/s and a momentum of 30 m/s, what is its mass?
450 m/s
2 m/s
4,500 m/s
.5 m/s
- 23. Multiple Choice
If an object has a mass of 20 kg and a velocity of 4 m/s, what is the momentum of the object?
80 kgm/s
4 kgm/s
5 kgm/s
.2 kgm/s
- 24. Multiple Choice
An object has a mass of 5 kg, a displacement of 5 m, and a time of 25 s, what is its momentum?
1 kgm/s
750 kgm/s
25 kgm/s
625 kgm/s
- 25. Multiple Choice
An object has a mass of 8 kg, a displacement of 10 m, and a time of 40 s, what is its momentum?
320 kgm/s
.5 kgm/s
3,200 kgm/s
2 kgm/s
- 26. Multiple Choice
Which of the following is the formula for momentum?
p = mv
M = mv
F = ma
g = mc2
- 27. Multiple Choice
Why is momentum considered to be a vector quantity?
Momentum has to indicate both magnitude and direction.
Momentum has to have a positive value.
Momentum has to be calculated using speed.
Momentum has a quantity but not a unit.
- 28. Multiple Choice
Which of the following is the unit for momentum?
kg·m/s
kg·m
kg·m/s2
Momentum has no unit.
- 29. Multiple Choice
The Law of Conservation of Momentum states that the amount of momentum in a system is ___________________ before and after a collision.
greater
decreased
the same
unknown
- 30. Multiple ChoiceA biker with a mass of 75 kg moves along the path with a constant velocity of 5 m/s. What is the biker's momentum?25 m/s375 m/s25 kg m/s375 kg m/s
- 31. Multiple Choice
Object 1 has a mass of 20 kg and an initial velocity of 5 m/s, and object 2 has a mass of 30 kg and an initial velocity of 6 m/s. What is their total momentum?
280
30
180
100
- 32. Multiple Choice
A 23 kg bag of dog food is thrown at a speed of 7 m/s into a stationary shopping cart that weighs 3.5 kg. What is the final velocity of the cart and bag?
6.1 m/s
7 m/s
4.6 m/s
3.5 m/s
- 33. Multiple Choice
A 9 kg cart moving at 5 m/s collides and sticks to a second cart with a mass of 5 kg. If the two carts stick together, what will the velocity of the two carts move at after the collision?
3.57 m/s
3.2 m/s
10.0 m/s
9.0 m/s
- 34. Multiple ChoiceWhich object listed below has the greatest momentum?A 0.05 kg object rolling at 0.2 m/s.A 0.15 kg object rolling at 2 m/s.A 0.15 kg object rolling at 1 m/sA 0.4 kg object rolling at 2 m/s.
- 35. Multiple Choice
Distance is measured in
Grams
Liters
Meters
Newtons
- 36. Multiple ChoiceWhat are the factors which combine to to keep celestial bodies in orbit?Air Resistance and GravityGravity and InertiaInertia and orbital speedOrbital speed and gravity
- 37. Multiple ChoiceThe tendency of a moving object to continue moving in a straight line or a stationary object to remain in place is called:Orbital SpeedGravityTerminal VelocityInertia
- 38. Multiple ChoiceAll objects are attracted to each other by the force of:GravityInertiaOrbital SpeedTerminal Velocity
- 39. Multiple ChoiceThe strength of the force of gravity depends on:the masses of the objects and their speeds.the masses of the objects and the distance between them.the weight of the objects and their speeds.the masses of the objects and their weights.
- 40. Multiple ChoiceAs distance increases, gravity __________________.IncreasesDecreasesStays the same
- 41. Multiple ChoiceWhat would happen to your mass if you traveled to a planet that was more massive than Earth?Your mass would stay the sameYour mass would increaseYour mass would decrease
- 42. Multiple ChoiceWhat would happen to your weight if you traveled to a planet that was more massive than Earth?Your weight would stay the sameYour weight would increaseYour weight would decrease
- 43. Multiple ChoiceWhat is weight?Force acting on all objects in the universetendency to resist changeforce of gravity on an objectmass plus distance
- 44. Multiple ChoiceSuppose the Moon were closer to Earth. How would the force of gravity between Earth and the Moon be different?There would be no differenceThere would be a weaker force of gravity between themThere would be a stronger force of gravity
- 45. Multiple ChoiceWhat is mass?amount of matter an object hasamount of inertia an object hasamount of gravity an object hasamount of density an object has
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