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Bell Ringer Quiz 4 (Unit2 Week1) – TEKS 8.7A: Equal Forces, Different Accelerations
Quiz by Grade 8 Science - Texas Education Agency
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​A mother and daughter press their hands together and then push apart while ice skating.
Immediately after they push away from each other, how does the motion of the mother and daughter change?
The mother moves forward, and the daughter moves backward with a greater acceleration.
Both move forward, but the mother moves with a greater acceleration.
The mother moves backward, and the daughter moves forward with a greater acceleration.
Both move backward, but the daughter moves with a greater acceleration.
A mother and daughter press their hands together and then push apart while ice skating.
Immediately after they push away from each other, how does the motion of the mother and daughter change?
Two skaters push off each other so that each experiences a 100 N force for an instant. Skater A has a mass of 80 kg, and Skater B has a mass of 40 kg.
Which statement best describes their motion immediately after they push apart?
Two students on low-friction carts push off. Each cart feels a 24 N force for 0.40 s. Cart X has mass 60 kg, and Cart Y has mass 30 kg.
What are their accelerations and speed changes during the push?
