Your physics class is conducting an experiment on the energy exchange between colliding objects. You and your classmates have identical materials and are experimenting with identical conditions. You perform three trials, and your data is different in each trial. You compare results with your peers and find that everyone has different data.

Question

How is the scientific experiment limited?

(1 point)
Responses

A The experiment shows that energy exchanges between objects differs.

B The experiment shows that collecting data is flawed.

C The experiment shows that scientific knowledge is changing.

D The experiment shows that replication of natural events is difficult.

Answer 1

The correct response is:

D The experiment shows that replication of natural events is difficult.

This option highlights the challenges in conducting experiments where variables may affect the outcomes, leading to different results even under seemingly identical conditions.

Answer 2

Which of the following would violate laboratory safety rules? (1 point)

tying long hair back when near an open flame

wearing goggles when lab materials are being used

wearing open-toed shoes when chemicals are being used

wearing gloves when chemicals are being used

Answer 3

The option that would violate laboratory safety rules is:

wearing open-toed shoes when chemicals are being used.

Open-toed shoes do not provide adequate protection for your feet in case of spills or falls, which could expose you to hazardous materials.

Answer 4

To be a pharmacist, doctor, or research biologist, a person would need a doctorate degree. Which of the following is true about doctorate degrees?
(1 point)

only students with a GED can enroll in a doctorate program.

Only students with a bachelor's degree can enroll in a doctorate program.

A doctorate program starts after a high school degree and lasts 2-3 years.

A doctorate degree can be costly and takes about 3-6 years to attain.

Answer 5

The statement that is true about doctorate degrees is:

A doctorate degree can be costly and takes about 3-6 years to attain.

This accurately reflects the typical time commitment and potential financial investment required for obtaining a doctorate degree in fields such as pharmacy, medicine, or research biology.

Answer 6

which piece of lab equipment is the best choice for observing small details when out in the field?
(1 point)

test tubes

hand lens

data collection probe

incubator

Answer 7

The best choice for observing small details when out in the field is:

hand lens.

A hand lens (or magnifying glass) is specifically designed for magnifying small objects and details, making it ideal for field observations.