If the energy of a wave increases, the amplitude of the wave increases.
(1 point)
Responses
True
True
False
False
Analog signals are more reliable than digital signals because they are less likely to be affected by bad weather. (1 point)
Responses
True
True
False
False
Your adult slams on her brakes in the car and your body keeps moving forward towards the windshield. This is called inertia and is an example of Newton’s 1st Law.
(1 point)
Responses
True
True
False
True
The gravitational force between objects is dependent on their mass and distance from one another. (1 point)
Responses
True
True
False
True
Which statement explains how the charges on objects determines the electric force between them?(1 point)
Responses
Objects with the same charge attract each other, and objects with opposite charges repel each other.
Objects with the same charge attract each other, and objects with opposite charges repel each other.
Objects with the same charge repel each other, and objects with opposite charges attract each other.
Objects with the same charge repel each other, and objects with opposite charges attract each other.
Objects with positive charges repel each other, and objects with negative charges attract each other.
Objects with positive charges repel each other, and objects with negative charges attract each other.
Objects with positive charges attract each other, and objects with negative charges repel each other.
Objects with the same charge repel each other, and objects with opposite charges attract each other.
Use the table of electric force between objects in two different interactions to answer the question.
Interaction
Charge on Object 1
Charge on Object 2
Amount of Force
A
+1
-2
weak
B
+1
+2
strong
Which conclusion about the interactions is correct?
(1 point)
Responses
Repulsive forces are stronger than attractive forces.
Repulsive forces are stronger than attractive forces.
Positive charges are stronger than negative charges.
Positive charges are stronger than negative charges.
The objects in Interaction A are smaller than in interaction B.
The objects in Interaction A are smaller than in interaction B.
The objects in interaction A are farther apart than in interaction B.