Question
The student finds a rolling cart weighing 50 kilograms and places it on a wooden surface. A rope is attached to both sides of the cart. In the first trial (Trial 1), the cart is pulled with three children each on either side, with each child applying the same force. In the second trial (Trial 2), the cart is pulled with three children on one side and two children on the other.
Trial 1 has a cart with a 50 kilogram mass. Three children are on the left, and three children are on the right. Trial 2 has a cart with a 50 kilogram mass. Three children are on the left, and two children are on the right.
Investigation 2
The student has also noticed that a bowling ball moves slower than a tennis ball when pushed with the same force, and increasing the force of the pushes makes the balls move faster. He conducts a second investigation to study this.
Part A
The student places a bowling ball and tennis ball on a wooden surface. He applies the same force to both the balls. He draws a diagram (Diagram 1) of his investigation. He labels the force as F, the mass of the bowling ball as m1 and the mass of the tennis ball as m2.The accelerations (a1 and a2) of each ball are shown by the lengths of the arrows drawn from each ball.
The mass of bowling ball is labeled m1. The mass of the tennis ball is labeled m2. A red arrow, representing force, is equal on both balls. A green arrow, representing acceleration, is shorter on the bowling ball than on the tennis ball.
Part B
Next, the student takes two plastic balls with the same mass (m) and places them on the same wooden surface. Now he applies different amounts of force (F1 and F2) on each. Again, the students draws a diagram showing his setup. The accelerations (a1 and a2) of the balls are shown by the lengths of the arrows drawn from each ball.
The red arrows on the balls represent force. The green arrows on the balls represent acceleration. The ball on top has a longer red arrow and a longer green arrow than the ball on the bottom.
What are the questions that are being investigated in Investigation 2? Select all that apply.
a
Does acceleration change with the force applied to the object?
b
Does an unbalanced force affect the mass of an object?
c
Does the mass affect the direction of motion of an object?
d
Does acceleration change with the mass of the object?
Trial 1 has a cart with a 50 kilogram mass. Three children are on the left, and three children are on the right. Trial 2 has a cart with a 50 kilogram mass. Three children are on the left, and two children are on the right.
Investigation 2
The student has also noticed that a bowling ball moves slower than a tennis ball when pushed with the same force, and increasing the force of the pushes makes the balls move faster. He conducts a second investigation to study this.
Part A
The student places a bowling ball and tennis ball on a wooden surface. He applies the same force to both the balls. He draws a diagram (Diagram 1) of his investigation. He labels the force as F, the mass of the bowling ball as m1 and the mass of the tennis ball as m2.The accelerations (a1 and a2) of each ball are shown by the lengths of the arrows drawn from each ball.
The mass of bowling ball is labeled m1. The mass of the tennis ball is labeled m2. A red arrow, representing force, is equal on both balls. A green arrow, representing acceleration, is shorter on the bowling ball than on the tennis ball.
Part B
Next, the student takes two plastic balls with the same mass (m) and places them on the same wooden surface. Now he applies different amounts of force (F1 and F2) on each. Again, the students draws a diagram showing his setup. The accelerations (a1 and a2) of the balls are shown by the lengths of the arrows drawn from each ball.
The red arrows on the balls represent force. The green arrows on the balls represent acceleration. The ball on top has a longer red arrow and a longer green arrow than the ball on the bottom.
What are the questions that are being investigated in Investigation 2? Select all that apply.
a
Does acceleration change with the force applied to the object?
b
Does an unbalanced force affect the mass of an object?
c
Does the mass affect the direction of motion of an object?
d
Does acceleration change with the mass of the object?
Answers
Answered by
GPT-5 mini
Correct answers: a and d.
- Part B tests how acceleration changes when you apply different forces to objects of the same mass (so a: Does acceleration change with the force?).
- Part A tests how acceleration changes for objects with different masses when the same force is applied (so d: Does acceleration change with the mass?).
Options b and c are not investigated here.
- Part B tests how acceleration changes when you apply different forces to objects of the same mass (so a: Does acceleration change with the force?).
- Part A tests how acceleration changes for objects with different masses when the same force is applied (so d: Does acceleration change with the mass?).
Options b and c are not investigated here.
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