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- 1. Multiple Choice
Which two of these forces act on parachutes?
Air Resistance
Gravity
Thrust
Kinetic Energy
- 2. Fill in the Blank
- 3. Fill in the Blank
________ is the force that opposes the sliding motion between two touching surfaces.
- 4. Multiple Choice
A force can act to cause an object at rest to move or it can accelerate an object that is already moving
True
False
- 5. Multiple ChoiceWhat law is best described by inertia?1st2nd3rd
- 6. Multiple Choice
Two forces are applied to a 2.0-kilogram block on a frictionless, horizontal surface, as shown in the diagram below. What is the acceleration of the block?
5.0 m/s2 to the left
3.0 m/s2 to the right
3.0 m/s2 to the left
5.0 m/s2 to the right
- 7. Multiple Choice
A 50kg cart will accelerate at 4 m/s2 when pushed with a force of 200N. This relationship demonstrates which of Newton's Laws of Motion?
Newton's 1st Law of Motion
Newton's 2nd Law of Motion
Newton's 3rd Law of Motion
Newton's 4th Law of Motion
- 8. Multiple ChoiceA person not wearing a seatbelt flies through a car window when someone slams on the breaks because the person’s body wants to remain in continuous motion even when the car stops.Newton's 1st LawNewton's 2nd LawNewton's 3rd LawNone of them
- 9. Multiple Choice
An object will accelerate in some direction only if ___________________________________.
a balanced force acts on it.
an unbalanced force acts on it
The object’s weight is increased
The object has reached terminal velocity
- 10. Multiple Choice
For an object to be in equilibrium (balanced), the forces acting upon it must be
in one direction, only.
equal in magnitude and opposite in direction.
both balanced and unbalanced.
equal in magnitude and identical in direction
- 11. Multiple Choice
An inflated balloon released from rest moves horizontally.
The law that best explains this event is
Newton's 1st Law
Newton's 2nd Law
Newton's 3rd Law
Law of Gravity
- 12. Multiple ChoiceWhat direction does friction act relative to motion?in the same directionin the opposite directionneed more informationdepends on the force
- 13. Multiple ChoiceThe force that pulls things toward earth.SpeedGravity
- 14. Multiple Choice
_____ relates the net force exerted on an object to its mass and acceleration
Friction
Weight
Gravity
Newton's second law of Motion
- 15. Multiple Choice
Action-reaction forces do not cancel each other because the action force is always greater than the reaction force.
True
False
- 16. Multiple ChoiceWhen two objects rub together, what force do they produceGravityAir resistanceFrictionWater resistance
- 17. Multiple ChoiceA measure of the amount of matter in an objectmassweightgravitypounds
- Answer choicesTagsAnswer choicesTags