Force and Motion 5.6D

Front

Which of the following statements regarding a simple experimental investigation is correct?

• Everything remains constant in a simple experimental investigation.
• One variable is tested in a simple experimental investigation.
• Two variables can be tested in a simple experimental investigation.
• Nothing remains constant in a simple experimental investigation.

Back

One variable is tested in a simple experimental investigation.

Front

Students use a spring scale to pull different types of shoes across a wood table and record the amount of force required. What is the investigation trying to answer?

Back

How does the type of shoe affect the amount of force required to pull it?

Front

Which of the procedures below would provide the most reliable data?

• Pull each type of shoe once and record the results.
• Pull each type of shoe twice and record the results of each trial.
• Pull each shoe five times and record the results of each trial.
• All of the procedures have the same reliability.

Back

Pull each shoe five times and record the results of each trial.

Front

What scientific tool is needed to measure how long it takes for a toy car to travel down different-sized wood ramps?

Back

Timing device (stop watch)

Front

Based on the picture above, what should be done to improve this experimental investigation?

Back

The same car should be used on both ramps.

Front

Why is it important to conduct multiple trials in a simple experimental investigation?

Back

Repeated investigations make the results more reliable.

Front

Four identical boxes filled with different materials are pushed with equal force for 15 seconds. Which box will move the farthest? Options: Box 1, Box 2, Box 3, Box 4.

Back

Box 1

Front

Why do the above boxes move different distances when pushed with the same amount of force?

Back

Heavier objects have increased friction with the floor.

Front

What experimental tool would be most useful in this experimental investigation? Options: Hand lens, Spring scale, Calculator, Meter stick

Back

Meter stick

Front

More friction occurs when an object rubs or moves against a ______ surface.

Back

Rough