Investigate how unbalanced forces affect an object's motion - 3rd Grade Science

Card 0 of 10

Question

This is an example of an unbalanced force.

Screen shot 2020 06 16 at 10.51.38 am

Answer

This statement is accurate; this is an unbalanced force. There is a greater force being applied to one side of the object when compared to the opposite side. This object will have a change in motion because of the unequal force.

Compare your answer with the correct one above

Question

What is an unbalanced force? Example: Due to the unbalanced forces on each side of the dresser, we were not able to slide it across the floor.

Answer

Unbalanced forces are the opposite of a balanced force. An unbalanced force causes a change in motion, speed, direction, or movements because of unequal force or strength that is applied to one side of an object. Opposite sides have forces acting against them, but in the case of unbalanced forces, one side has more energy than the other.

Compare your answer with the correct one above

Question

How will the motion of the individual change due to the unbalanced forces?

Resist, Tug-Of-War, Cartoon, Strong

Answer

This graphic represents an unbalanced force. One individual player versus three players on the opposite team is not an equivalent amount of force or strength. The single-player will move towards the group of three when the pulling starts because they have more power than one player alone. The lone player will eventually lose the game when crossing over the center point due to an equal amount of force.

Compare your answer with the correct one above

Question

How can this graphic be edited to represent an unbalanced force?

Screen shot 2020 06 16 at 10.45.56 am

Answer

This graphic currently represents an object with balanced forces working on it. Each side has the same amount of force, so the object will not move. If one of the arrows is elongated, there will be an unequal distribution of force, so the object will move. Creating an unbalanced amount of strength on one side will change the object's motion.

Compare your answer with the correct one above

Question

If a toy car is rolling on a smooth surface and I push a heavier, faster toy car into it, how will its motion be affected?

Answer

In this scenario, there is an example of unbalanced forces. When an unbalanced force is applied to an object, there can be a change in motion. When a heavier, faster toy car moves into the path or side of the small car, it will cause the little vehicle to change speeds, directions, or even stop. This change in motion is due to a stronger force acting upon the small toy car.

Compare your answer with the correct one above

Question

How can this graphic be edited to represent an unbalanced force?

Illustration of Balanced Forces at work

Answer

This graphic currently represents an object with balanced forces working on it. Each side has the same amount of force, so the object will not move. If one of the people was removed or an extra person was added to either side, there will be an unequal distribution of force so that the object will move. Creating an unbalanced amount of strength on one side will change the object's motion.

Compare your answer with the correct one above

Question

Mrs. Gartrell's class is playing Tug-of-War to demonstrate how an unbalanced force will affect an object's motion. The class has twenty students, and they have to split into teams to represent an unbalanced force. J'Michael says they should divide evenly, ten on each side. Nate disagrees and says there should not be even teams; it should be the eight students against twelve students.

Who is correct, and why?

Answer

In this situation, the students are trying to demonstrate an example of unbalanced forces. Unbalanced forces mean they are not even or the same. One side should have more energy than another when there are unbalanced forces. Nate is correct in this scenario; there should be uneven teams with different strengths on each side. To get the rope to move and one team to win, there has to be more strength on one side. When creating the teams, the side with the highest number of students would have more energy and strength, leading to an unbalanced force.

Compare your answer with the correct one above

Question

A toy train is rolling on a smooth surface. I am investigating how unbalanced forces affect an object's motion, so I push a heavy car into the train and then repeat it again but with a lighter car. What effect on the train's motion will I most likely notice?

Answer

In this scenario, there is an example of unbalanced forces. When an unbalanced force is applied to an object, there can be a change in motion. When the heavier toy car moves into the path or side of the train, it will cause the little vehicle to change speeds, directions, or even stop. This change in motion is due to a stronger force acting upon the toy train. The lighter car may have an impact on the train's movement, but it will not be as great.

Compare your answer with the correct one above

Question

Which scenario is NOT an example of unbalanced forces?

Answer

In the scenarios, "Samantha and her twin sister play tug-of-war; it ends in a tie." is NOT an example of unbalanced forces. The sisters are the same age, and we can assume the same size (they are twins) and the game neds in a tie. This means that they pulled with the same strength, and neither won. This would indicate that the forces were balanced during the tugging.

Compare your answer with the correct one above

Question

Unbalanced forces are the opposite of a balanced force.

Answer

An unbalanced force causes a change in motion, speed, direction, or movements because of unequal force or strength that is applied to one side of an object. Opposite sides have forces acting against them, but in the case of unbalanced forces, one side has more energy than the other. Unbalanced forces are the opposite of a balanced force.

Compare your answer with the correct one above

Tap the card to reveal the answer