First Law
19. Newton’s first law of motion can also be called the _____________________________ .
Law of Inertia
16. Which law of motion describes how the net force on an object, its mass, and its acceleration are all related?
The second law
13. When a force is applied in nature, a ________________________ force occurs at the same time.
Reaction
17. No matter how far apart two objects get, the __________________________ will never disappear.
Gravitational force
26. The _______________________ of an object is different on other planets.
weight
22. The first law of motion describes an object whose net force is _________________________________
zero
27. The acceleration of a object is in the same direction as what?
the net force
32. Which law of motion is the following: for every action, there is an equal but opposite reaction?
The third law
18. ___________________________ is an attractive force between any two objects.
gravity
What is the speed of an object with 9kg of mass and a momentum of 63 (kg)(m/s)?
7 m/s
14. Which law of motion can explain what happens in a car crash?
The first law of motion
25. What equation represents Newton’s second law of motion?
F=ma
33. Who published the three laws of motion?
Isaac Newton
39. What is the numeric representation of gravity on Earth?
9.8 m/s^2
15. According to the law of universal gravitation, the gravitational force between two objects __________________________, as the distance between the two masses _____________________________.
decrease, increase
37. The ___________________________ states that an object in motion will remain in motion and an object at rest will remain at rest unless acted on by an outside force.
First law of motion
43. Which of Newton’s laws support rocket propulsion?
The second law
46. According to the third law of motion, action and reaction forces act on ___________________________.
different objects
21. Isaac Newton used data about the motion of the planets to form the __________________ .
law of universal gravitation
30. Which of the following exerts the strongest force on you? Earth, the Sun, the Moon
The Earth
48. According to the first law of motion, the velocity of an object does not change unless the forces acting on the object are ______________________________ .
unbalanced
47. Earth’s gravity causes projectiles to follow a _________________________ path.
curved
49. Weight is a ___________________ and mass is a measurement of ________________________ .
force, matter
20. Name the 4 basic forces
gravitational force, electromagnetic force, strong nuclear force, weak nuclear force
45. The greater an object’s ____________________, the greater its inertia.
mass