Forces on a Parachute and Scientific Inquiry Quiz

What is air resistance (drag)?

• A force that pulls things to the ground.

• The resistance force that occurs when an object travels through the air.

• A force that only acts on water.

• A force that increases speed.

What does lift refer to in the context of forces?

• A force that acts upwards, often created by an object moving through air.

• A force that pulls objects downwards.

• A force that only acts on stationary objects.

• A force that slows objects down.

What are balanced forces?

• Forces that act only in water.

• Forces that act on an object and are uneven, causing motion.

• Forces that act on an object and are even, causing no change in the object's motion.

• Forces that only act in space.

What is an independent variable in an experiment?

• The variable we deliberately change.

• The variable we keep the same.

• The variable we measure.

• The variable we ignore.

A 16-year-old male student, and a 9-year-old male student are having a tug-of-war competition. The 16-year-old student pulls hard, and the 9-year-old student is pulled over the line and loses the competition.

What is this an example of?

• Balanced Forces

• Controlled Variables

• Unbalanced Forces

• Gravity

What is a fair test?

• An experiment where only one variable is changed and all others are kept the same.

• An experiment where all variables are changed.

• An experiment with no controls.

• An experiment that cannot be repeated.

What are controlled variables (controls)?

• Variables we ignore.

• Variables we change on purpose.

• Variables we measure.

• Variables we keep the same to make the test fair.

What is a prediction in a scientific experiment?

• A statement about what you think will happen within the experiment.

• A statement about what already happened.

• A statement about unrelated topics.

• A statement that cannot be tested.

What is gravity?

• A force that acts on liquids.

• A force that pushes objects away from the Earth.

• A downward force that pulls objects towards the Earth.

• A force that only acts in space.

What does repetition mean in scientific inquiry?

• Changing a variable multiple times.

• Repeating a trial multiple times.

• Ignoring results.

• Measuring only once.