Question

part 3 use the images to answer the following questions to practice the forms of energy more. 1. which object has more potential energy? (a or c) 2. why does it have more potential energy? 3. assume object c has more mass than object b. which object has more potential energy? (b or c) 4. why does it have more potential energy?

Explanation:

Step1: Analyze potential energy formula

Potential energy formula is \(PE = mgh\) (where \(m\) is mass, \(g\) is acceleration due to gravity, \(h\) is height).

Step2: Compare A and C

For question 1, assume \(m_A=m_C\) (same - material balls in A and C), \(h_C>h_A\). Using \(PE = mgh\), since \(m\) and \(g\) are constant (for same - material object near Earth's surface), \(PE\propto h\).

Step3: Compare B and C

For question 3, \(h_B = h_C\), \(m_C>m_B\). Using \(PE=mgh\), since \(g\) and \(h\) are constant (same height), \(PE\propto m\).

Answer:

1. C
2. Because \(h_C>h_A\) (assuming \(m_A = m_C\)) and \(PE=mgh\) (\(m\) and \(g\) are constant), so \(PE_C>PE_A\)
3. C
4. Because \(m_C>m_B\) (assuming \(h_B = h_C\)) and \(PE = mgh\) (\(g\) and \(h\) are constant), so \(PE_C>PE_B\)