1. In the experiment "Investigating the Relationship between Acceleration, Force, and Mass", the core scientific method adopted is:
- A. Control Variable Method
- B. Ideal Experiment Method
- C. Equivalent Substitution Method
- D. Micro-element Method
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Investigating the Relationship between Acceleration, Force, and Mass - Classroom Practice
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In the experiment "Investigating the Relationship between Acceleration, Force, and Mass", the core scientific method adopted is:
Investigating the Relationship between Acceleration, Force, and Mass - Classroom Practice - Quiz Questions
Test your understanding of the principle, data processing, and conclusions of Newton's Second Law experiment through the following exercises.
2. In the simulation experiment, keeping the mass $M = 0.5\text{kg}$ constant, when the pulling force increases from $0.5\text{N}$ to $1.0\text{N}$, how should the acceleration change?
- A. Acceleration becomes 2 times the original
- B. Acceleration becomes $\frac{1}{2}$ of the original
- C. Acceleration increases by $0.5\text{m/s}^2$
- D. Acceleration remains unchanged
3. [Calculation] A cart has a mass of $0.5\text{kg}$ and is subjected to a constant pulling force of $1.5\text{N}$, ignoring friction. The acceleration of the cart is:
- A. $1.0\text{m/s}^2$
- B. $2.0\text{m/s}^2$
- C. $3.0\text{m/s}^2$
- D. $0.75\text{m/s}^2$
4. If the $a\text{-}F$ graph you obtained is a straight line passing through the origin, what does this indicate?
- A. Acceleration is directly proportional to force
- B. Acceleration is inversely proportional to force
- C. Acceleration is directly proportional to the square of force
- D. Acceleration is independent of force
5. When investigating "Relationship between Acceleration and Mass", why draw an $a\text{-}1/m$ graph instead of an $a\text{-}m$ graph?
- A. Because $a$ is directly proportional to $1/m$, the graph is a straight line, which is easier to analyze
- B. Because the $a\text{-}m$ graph cannot be drawn
- C. Because $a$ is directly proportional to $m$
- D. Because physics regulations require it
6. Why "balance friction" in this experiment? (Although the simulation can set an ideal frictionless environment)
- A. To make the tension of the string equal to the net external force on the cart
- B. To increase the mass of the cart
- C. To make the ticker timer tick more evenly
- D. To reduce the tension of the string on the cart
7. [Calculation] In an experiment, the measured ticker tape data are: $x_1 = 2.0\text{cm}$, $x_2 = 3.0\text{cm}$, $x_3 = 4.0\text{cm}$, $x_4 = 5.0\text{cm}$, $x_5 = 6.0\text{cm}$, $x_6 = 7.0\text{cm}$. Given $T = 0.1\text{s}$, calculate the acceleration using the successive difference method:
- A. $1.0\text{m/s}^2$
- B. $2.0\text{m/s}^2$
- C. $0.9\text{m/s}^2$
- D. $9.0\text{m/s}^2$
8. Regarding the calculation of acceleration using the successive difference method, which of the following statements is correct:
- A. The successive difference method can make full use of data to reduce accidental errors
- B. Only the 1st and the last point on the tape can be used
- C. The result calculated by the successive difference method definitely has no error
- D. The more counting points, the better, every point should be taken
9. Which of the following statements about Newton's Second Law is correct:
- A. The acceleration of an object is directly proportional to the net external force acting on it and inversely proportional to its mass
- B. The greater the velocity of an object, the greater the net external force it receives
- C. The greater the mass of an object, the smaller the gravity it receives
- D. When an object is not subject to force, it must be in a static state
10. In the experiment, if one forgets to balance the friction before proceeding, what will be the result?
- A. The measured acceleration is smaller than the theoretical value
- B. The measured acceleration is larger than the theoretical value
- C. The measured acceleration is exactly equal to the theoretical value
- D. The ticker timer cannot work properly