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Balanced And Unbalanced Forces
Test Description: This will help you review for your check-up.
Instructions: Answer all questions to get your test result.
1) The combination of all forces acting on an object is called a(n)
A
newton
B
balanced force
C
unbalanced force
D
net force
2) To find the net force of forces that are acting in the same direction, you need to ________ the two forces.
A
add
B
multiply
C
divide
D
subtract
3) To find the net force of forces that are acting in opposite directions, you need to ___________ the two forces.
A
subtract
B
divide
C
multiply
D
add
4) All of the statements below are true about an unbalanced force EXCEPT
A
An unbalanced force has a net force of zero.
B
If an unbalanced force is applied to an object that is already moving, it will change its speed and/or direction.
C
If an unbalanced force is applied to an object that is not already moving, the object will begin to move in the direction of
D
An unbalanced force has a net force greater than zero.
5) All of the statements are true about a balanced force EXCEPT
A
If the object is already moving and two balanced forces are applied to it, the object will continue moving at the same speed
B
A balanced force has a net force of zero.
C
If the object is not moving and two forces are applied to it, the forces cause the object to move.
D
A balanced force has a net force greater than zero.
6) A chipmunk and a squirrel push on an apple in the same direction. The chipmunk is pushing with a force of 6 N. The squirrel is pushing with a force of 2 N. What is the net force?
A
4 N
B
8 N
C
12 N
D
3 N
7) Two children fight over a toy. One pulls with a force of 8 N to the right. The other pulls with a force of 6 N to the left. What is the net force and direction of the toy?
A
2 N to the right
B
2 N to the left
C
48 N to the right
D
14 N to the right
8) Two teams are playing tug-of-war. One team pulls with a force of 50 N to the right. The other team pulls with a force of 50 N to the left. What is the net force and direction of the rope?
A
1 N and the rope moves to the right.
B
2500 N and the rope moves to the left.
C
100 N to the right.
D
0 N and the rope does not move.
9) Paige and Rebecca are pulling on a cart to the right. Paige is pulling with a force of 10N. Rebecca is pulling with a force of 2 N. Erica is pulling on the same cart to the left with a force of 20 N. What is the net force and direction?
A
38 N and the cart moves to the left.
B
8 N and the cart moves to the right.
C
8 N and the cart moves to the left.
D
O N and the cart does not move.
10) Bob is pushing on the box to the right with a force of 20 N. Tom is pushing on the box up with a force of 20 N. What is the net force and the direction?
A
40 N up
B
20 N to the right and 20 N up (20 N diagonally up and to the right)
C
40 N to the right
D
0 N and the box doesn't move.
*select an answer for all questions
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