Slide 3 (Answer) / 38 1 Which of the following is NOT an example of - PDF document

Slide 1 / 38 Slide 2 / 38 8th Grade Types of Interactions Study Guide 2015-08-26 www.njctl.org Slide 3 / 38 1 Which of the following is NOT an example of a force being exerted through a field? A Gravity pulling on a falling apple B A man pushing a car C A magnet attracting a steel ball D An electrically charged balloon pushing on another balloom from across the room

Slide 3 (Answer) / 38 1 Which of the following is NOT an example of a force being exerted through a field? A Gravity pulling on a falling apple Answer B A man pushing a car B C A magnet attracting a steel ball D An electrically charged balloon pushing on another balloom from across the room [This object is a pull tab] Slide 4 / 38 2 Unbalanced forces acting on an object will cause it to accelerate (chance velocity). True False Slide 4 (Answer) / 38 2 Unbalanced forces acting on an object will cause it to accelerate (chance velocity). True False Answer True [This object is a pull tab]

Slide 5 / 38 3 The force of gravity ___ as the object's mass decreases. A increases B remains constant C decreases Slide 5 (Answer) / 38 3 The force of gravity ___ as the object's mass decreases. A increases B remains constant Answer C decreases C [This object is a pull tab] Slide 6 / 38 4 The force of gravity _________ as the distance between two objects decreases. Increases A Remains Constant B Decreases C

Slide 6 (Answer) / 38 4 The force of gravity _________ as the distance between two objects decreases. Increases A Remains Constant Answer B A Decreases C [This object is a pull tab] Slide 7 / 38 5 The force of gravity decreases at a constant rate as we move away from a planet like Jupiter. True False Slide 7 (Answer) / 38 5 The force of gravity decreases at a constant rate as we move away from a planet like Jupiter. True False Answer False [This object is a pull tab]

Slide 8 / 38 6 As we move away from the Sun, the force of gravity gets weaker by an inverse of: distance cubed A distance B distance squared C Slide 8 (Answer) / 38 6 As we move away from the Sun, the force of gravity gets weaker by an inverse of: distance cubed A distance B Answer C distance squared C [This object is a pull tab] Slide 9 / 38 7 What makes a balloon exhibit an overall positive charge? A Equal protons and electrons in the object B More electrons than protons in the object C More protons than electrons in the object D Less electrons in the object

Slide 9 (Answer) / 38 7 What makes a balloon exhibit an overall positive charge? A Equal protons and electrons in the object B More electrons than protons in the object Answer C More protons than electrons in the object C D Less electrons in the object [This object is a pull tab] Slide 10 / 38 8 What makes an object exhibit a overall negative charge? equal protons and electrons in the object A more electrons than protons in the object B more protons than electrons in the object C less electrons in the object D Slide 10 (Answer) / 38 8 What makes an object exhibit a overall negative charge? equal protons and electrons in the object A Answer more electrons than protons in the object B B more protons than electrons in the object C less electrons in the object D [This object is a pull tab]

Slide 11 / 38 9 What makes an object exhibit an overall neutral charge? equal protons and electrons in the object A more electrons than protons in the object B more protons than electrons in the object C less electrons in the object D Slide 11 (Answer) / 38 9 What makes an object exhibit an overall neutral charge? equal protons and electrons in the object A more electrons than protons in the object Answer B A more protons than electrons in the object C less electrons in the object D [This object is a pull tab] Slide 12 / 38 10 Opposite charges repel. True False

Slide 12 (Answer) / 38 10 Opposite charges repel. True False Answer False [This object is a pull tab] Slide 13 / 38 11 Like charges attract. True False Slide 13 (Answer) / 38 11 Like charges attract. True False Answer False [This object is a pull tab]

Slide 14 / 38 12 As the amount of charge decreases, the electric force between the charges ___. A decreases B remains constant C increases Slide 14 (Answer) / 38 12 As the amount of charge decreases, the electric force between the charges ___. A decreases B remains constant Answer A C increases [This object is a pull tab] Slide 15 / 38 13 As the amount of distance between charges decreases, the force between the charges ___. A decreases B remains constant C increases

Slide 15 (Answer) / 38 13 As the amount of distance between charges decreases, the force between the charges ___. A decreases B remains constant Answer C C increases [This object is a pull tab] Slide 16 / 38 14 Electric field lines exit positive charges and enter negative charges. True False Slide 16 (Answer) / 38 14 Electric field lines exit positive charges and enter negative charges. True False Answer True [This object is a pull tab]

Slide 17 / 38 15 The electric field strength between two parallel oppositely charged plates: A increases as you move towards the positive plate. B decreases as you move towards the negative plate. C remains constant at all points between the plates. Slide 17 (Answer) / 38 15 The electric field strength between two parallel oppositely charged plates: A increases as you move towards the positive plate. B decreases as you move towards the negative plate. Answer C C remains constant at all points between the plates. [This object is a pull tab] Slide 18 / 38 16 William Gilbert was the scientist who discovered that the Earth was a giant magnet. True False

Slide 18 (Answer) / 38 16 William Gilbert was the scientist who discovered that the Earth was a giant magnet. True False Answer True [This object is a pull tab] Slide 19 / 38 17 Microscopic regions inside iron are called ___. A magnetic crystals B magnetic domains C magnetic atoms Slide 19 (Answer) / 38 17 Microscopic regions inside iron are called ___. A magnetic crystals B magnetic domains Answer B C magnetic atoms [This object is a pull tab]

Slide 20 / 38 18 Ferromagnetic substances include: (select all that are ferromagnetic) A iron B aluminum C nickel D cobalt Slide 20 (Answer) / 38 18 Ferromagnetic substances include: (select all that are ferromagnetic) A iron Answer B aluminum A, C, D C nickel D cobalt [This object is a pull tab] Slide 21 / 38 19 An electromagnet produces a magnetic field when current flows through it. True False

Slide 21 (Answer) / 38 19 An electromagnet produces a magnetic field when current flows through it. True Answer False True [This object is a pull tab] Slide 22 / 38 20 Soft iron is an example of a(an) ___. A electromagnet B temporary magnet C permanent magnet D superconductor Slide 22 (Answer) / 38 20 Soft iron is an example of a(an) ___. A electromagnet B temporary magnet Answer B C permanent magnet D superconductor [This object is a pull tab]

Slide 23 / 38 21 Like magnetic poles ___. A attract B repel C don't interact Slide 23 (Answer) / 38 21 Like magnetic poles ___. A attract Answer B repel B C don't interact [This object is a pull tab] Slide 24 / 38 22 What does this type of field drawing represent? A Attraction B Repulsion C Suspension

Slide 24 (Answer) / 38 22 What does this type of field drawing represent? A Attraction B Repulsion Answer A C Suspension [This object is a pull tab] Slide 25 / 38 23 A test compass at A will be oriented like: A B A C D Slide 25 (Answer) / 38 23 A test compass at A will be oriented like: A Answer B A A C D [This object is a pull tab]

Slide 26 / 38 24 A test compass at B will orient itself like: A B C B D Slide 26 (Answer) / 38 24 A test compass at B will orient itself like: A B Answer A C B D [This object is a pull tab] Slide 27 / 38 25 Magnetic field lines exit from the south pole of a magnet. True False

Slide 27 (Answer) / 38 25 Magnetic field lines exit from the south pole of a magnet. True False Answer False [This object is a pull tab] Slide 28 / 38 26 As the distance from a magnetic field is increased, the magnetic field intensity will ___. A increase B decrease C stay the same Slide 28 (Answer) / 38 26 As the distance from a magnetic field is increased, the magnetic field intensity will ___. A increase B decrease Answer B C stay the same [This object is a pull tab]

Slide 29 / 38 27 Moving electric charges (electric current) causes a magnetic field to form. True False Slide 29 (Answer) / 38 27 Moving electric charges (electric current) causes a magnetic field to form. True False Answer True [This object is a pull tab] Slide 30 / 38 28 The __________ rule is the rule that relates the direction of a magnetic field surrounding a wire carrying current. left thumb A right hand B right arm C left hand D