A science class is planning an investigation about gravity and objects on Earth. In three to four sentences, explain the steps the class should take to provide data to help them make a conclusion about the effect of gravity on objects of different masses.(4 points)
5 answers
The class should begin by selecting objects of different masses, such as a light feather and a heavy book. They should then measure the time it takes for each object to fall from the same height, using a stopwatch. The class should repeat this experiment multiple times and calculate the average time for each object. By comparing the results, they can conclude whether gravity affects objects of different masses equally or differently.
Two skydivers of different masses jump from a plane. In three to five sentences, explain how their falls compare, including the effects of gravity, mass, and air resistance.(4 points)
When two skydivers of different masses jump from a plane, they will experience similar acceleration due to gravity, which is approximately 9.8 m/s² on Earth. However, due to their different masses, the force of gravity will exert a greater pull on the skydiver with greater mass. As a result, the skydiver with greater mass will experience a greater gravitational force and will accelerate at a slower rate compared to the skydiver with lesser mass. In addition to gravity, air resistance will also play a role. As the skydivers fall, they experience air resistance which opposes their motion. The skydiver with lesser mass will experience a lesser air resistance, resulting in a faster fall compared to the skydiver with greater mass who will experience greater air resistance and fall slower.
Two skydivers of different masses jump from a plane. In three to five sentences, explain how their falls compare, including the effects of gravity, mass, and air resistance.(4 points) Write in 2-3 sentences
When the two skydivers of different masses jump from a plane, they will both experience the same acceleration due to gravity as it is independent of mass. However, the skydiver with greater mass will experience a greater gravitational force and, therefore, a greater weight. This higher weight will result in a greater air resistance force acting on the skydiver, causing them to fall at a slower rate compared to the skydiver with lesser mass who will experience less air resistance and fall faster.
1 answer