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Chapter 13 Forces Lesson 3
Test Description: This Test will help you review lesson 3 from Ch. 13
Instructions: Answer all questions to get your test result.
1) Which of the following is true when the net force acting on an object is zero?
A
The object will move in the direction of the lesser force
B
The object will be in a state of equilibrium
C
The object will change direction
D
The object will move in the direction of the greatest force
2) What does Newton’s Second Law of Motion describe?
A
action and reaction forces
B
the effects of inertia on an object’s motion
C
the relationship between power, work, and time
D
the relationship between mass, acceleration, and net force
3) Which of the following is true about inertia?
A
Inertia is the force that causes a spacecraft to slow down and fall to Earth
B
fully loaded truck has more inertia than an empty truck of the same size
C
Inertia is the tendency of an object to change direction or slow its motion
D
An empty shopping cart has more inertia than a full shopping cart
4) Which happens when equal forces act on an object from opposite directions?
A
The motion of the object will change
B
The forces are balanced
C
The direction of the object will change
D
The forces are unbalanced
5) Which of the following explains what happens when a person pushes against a wall?
A
The force pushing on the wall is greater than the force of the wall pushing back
B
No force acts on the wall, because the wall does not move
C
The wall pushes against the person with an equal and opposite force
D
The forces acting on the wall become unbalanced.
6) An object is at rest. What will happen if no net force acts on the object?
A
The object will change direction
B
The object will stay at rest
C
The object will move in a straight line
D
The object will move forward at a constant speed
7) Tom pushes a box in a staight line with a force of 12 Newtons. The box is moving at a constant speed. What will happen when George pushes against the box, in the opposite direction, with a force of 8 Newtons
A
The box will continue moving in a straight line and at the same speed
B
The box will begin to move in the opposite direction
C
The box will continue moving at a slower speed in the same direction
D
The box will increase in speed until the forces acting on it are balanced
8) Which of the following is true about acceleration?
A
Acceleration equals the mass of the object divided by the net force acting on it
B
Acceleration refers to the rate at which an object’s velocity changes over time
C
Acceleration refers to how forces maintain the velocity of objects in motion
D
At the same net force, a large mass has a greater acceleration than a small mass
9) Which one of Newtons Laws says that an object at rest will stay at rest until a net force acts upon it?
A
Third Law
B
First Law
C
Second Law
D
Combination of the Second and Third Laws
10) If Team A and Team B are playing a game of tug of war. What will happen if Team A pulls with more force than Team B?
A
Both teams will cross the center line
B
Nothing they will stay the same
C
Team B will be pulled over the center line
D
Team A will be pulled over the center line
*select an answer for all questions
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