The Government of India Act of 1935 impacted the national movement in India. Option 1 states that it strengthened the movement, which is the correct answer.

Option 2 suggests that it weakened the movement by satisfying the people. However, this is not accurate as the Act did not fully satisfy the demands of the Indian nationalists. The Act still gave significant power to the British government and limited the autonomy of the Indian people.

Option 3 claims that the Act weakened the movement due to the creation of separate electorates for Muslims and Hindus. This created divisions within the movement, but it did not significantly weaken it. In fact, the Act actually gained support from some Muslim leaders who saw it as a step towards self-governance.

Option 4 claims that the Act weakened the movement because it introduced a federal system. However, the introduction of a federal system actually provided an opportunity for the Indian nationalists to gain political experience and build a foundation for future self-governance.

In conclusion, the correct answer is option 1 as the Government of India Act of 1935 strengthened the national movement in India.