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WorksheetsForce: Bal vs Unbal Forces
Total questions: 18
Worksheet time: 12mins
Daniel and Lily are pushing a car together. The combination of all of the forces they exert on the car
Net Force
Force
Inertia
Gravity
Arjun and Maya are organizing a tug-of-war game at a school event. In one team, five children each pull with 5 newtons of force. In the opposing team, ten children each pull with 10 newtons of force. How can one determine the net force on the rope?
The forces are in the same direction, so the newtons can be added.
The forces are in opposite directions, so the newtons can be divided.
The forces are in opposite directions, so the newtons can be subtracted.
The newtons are in the same direction, so the newtons can be multiplied.
Anika and Priya are trying to slide a heavy box across the floor. Friction is defined as
a change in the direction of two objects in nature.
the resistance to a change in the speed of an object.
the force that is required to stop and start an object at rest.
a force between two touching surfaces that opposes motion.
Samuel is pushing a box with a force of 8 N to the right, while David is pushing it with a force of 14 N to the left. What will happen to the movement of the box when an additional 10 N of force is added on the right?
The box will move upward.
The box will move to the left.
The box will move downward.
The box will move to the right.
Abigail and Aiden are playing tug-of-war with a box. Which statement best describes the motion of the box when they pull on it?
The box will move to the left because the forces are balanced.
The box will move to the right because the forces are balanced.
The box will move to the left because the forces are unbalanced.
The box will move to the right because the forces are unbalanced.
Luna and Nora are trying to move a heavy box to the right. Which statement best describes the forces required to move the box?
The forces must be balanced with the force from the left greater than the force from the right.
The forces must be balanced with the force from the right greater than the force from the left.
The forces must be unbalanced with the force from the left greater than the force from the right.
The forces must be unbalanced with the force from the right greater than the force from the left.
Nora tries to push a car that has run out of gas on the side of the road. As much as she tries, she can not get the car to move. Which statement best describes why the car is not moving?
Nora did not apply enough force to the car and so the forces are unbalanced.
Nora did not apply enough force to the car and so the forces are still balanced.
Nora applied too much force to the car and now the forces on the car are balanced.
Nora applied too much force to the car and now the forces on the car are unbalanced
Which diagram best shows the forces which need to be added to balance the box?
Evelyn and Aiden are playing tug-of-war. Evelyn pulls with a force of 10 N towards the north, while Aiden pulls with a force of 2 N towards the south. The net force on the rope is
8 N south.
12 N south.
20 N south.
8 N North.
Isla and Kai are conducting an experiment with two diagrams, A and B. In diagram A, the two spring scales have been stretched until each reads 10 N, the wheels of the cart are almost frictionless wheels, and the cart is at rest. In diagram B, the pull toward the left has been replaced by a block fastened rigidly to a table, and the pull to the right has stretched the spring scales until the one on the right again reads 10 N, and the cart is at rest. What is the magnitude of the force between cart B and the block?
0 N
5 N
10 N
20 N
Avery throws a ball up in the air and it comes back down. Which of the following is an example of unbalanced forces?
a car moving with constant speed on a straight road
a hanger hanging on a rod
a ball thrown up that comes back down
a parked bus
Landon is the pitcher on the baseball team. He pitches the ball toward home plate. It begins in a straight line and then curves toward the ground. What forces are acting on the ball?
friction and electricity
friction and gravity
magnetism and gravity
magnetism and electricity
Emma and her friends are playing tug-of-war. Both teams are pulling with a force of 2,300 newtons (N). What will happen if Emma's team on the left increases its effort and pulls the rope with a force of 2,330 N?
Emma's team will be able to pull the other team to the left at a constant speed.
The other team will be able to pull Emma's team to the right at a constant speed.
Emma's team will be able to pull the other team to the left at an increasing speed.
The other team will be able to pull Emma's team to the right at an increasing speed.
Maya is playing with a ball and notices it slows down as it rolls across the floor. What is the unbalanced force that causes this?
friction
gravity
inertia
momentum
Which of the following is an example of balanced forces acting on an object?
a manatee swimming in a river
a roller coaster going downhill
a school bus slowing down
a textbook sitting on the desk
Noah and Elijah are playing a game of tug-of-war. If Noah's team pulls Elijah's team across the line, this is an example of which of the following?
reaction forces, only
action forces, only
balanced forces
unbalanced forces
Victoria and Claire are playing a game of tug-of-war, but the flag tied to the center of the rope is NOT moving. What is happening to the rope in this game?
Victoria is applying more force in one direction.
Claire is applying more force in one direction.
Victoria and Claire are applying equal forces in the same direction.
Victoria and Claire are applying equal forces in opposite directions.
Lily is trying to push a box across the floor. The box will move if
there is no amount of force and no friction acting on the box.
the amount of friction is greater than the amount of force Lily uses.
the amount of friction and the amount of force Lily uses are the same.
the amount of force Lily uses is greater than the amount of friction.
