TCAP Review #1

Leon likes doing science experiments. However, he could not understand why the directions said to repeat the experiment three times. Leon's teacher explained that scientists always repeat their experiments. Why do scientists repeat their experiments?

• to avoid making observations

• to throw out the information they collected earlier

• to develop a new procedure that they can use later

• to make sure that the information they collect is reliable

• the speed with which the weight is pulled

• the amount of weight being pulled

• the force needed to pull the weight

• the type of surface the weight is being pulled across

Which is the goal of using this technology?

• to meet human health needs

• to make work easier and faster

• to meet human communication needs

• to redesign and develop new technology

Which is true about the engineering design process?

• It ends when an engineer builds a model.

• It is used to solve all human problems.

• It begins with identifying a problem.

• Most engineers do not use it to solve problems.

Three students are designing a tool to assist in constructing an object. Which of the following is the correct sequence of the design technology process they should follow?

• Design a solution > brainstorm ideas > build the prototype

• design a solution > build the prototype > evaluate and redesign

• brainstorm ideas > communicate the solution > test the prototype

• communicate the solution > brainstorm ideas > build the prototype

How can failure be part of the design process?

• The design process ends once the prototype fails.

• Failure is not part of the design process.

• Failure can reveal areas that need improvement.

• Failure convinces engineers to give up.

Which of the following is an example of how the environment affects the physical characteristics of an organism?

• a bear born with black fur

• garden vegetables in the shade not growing very tall

• a fish's ability to swim

• a baby crying when hungry

Which two factors affect the gravitational force between two objects?

• force and size

• size and distance

• mass and distance

• mass and force

A litter of foxes is born in an area with lots of snow all year. Two pups are white and two are brown. What is true about this variation?

• The variation will help the brown foxes.

• The variation will help all the foxes.

• The variation will help none of the foxes.

• The variation will help the white foxes.

Which of these is not a good examples of incomplete dominance?

• A parent with curly hair and a parent with straight hair produce a child with wavy hair.

• A parent with black wool and a parent with white wool produce an offspring with gray wool.

• Two parents with green seedpods produce an offspring with green seedpods.

• A parent with red flowers and a parent with white flowers produce an offspring with pink flowers.