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Gravity

Total questions: 20

Worksheet time: 11mins

Name
Class
Date
1.

In the "Gravitational Drop Challenge" (Phase 1), which variable is intentionally changed by the students to test their hypothesis regarding the rate of free fall?

a)

The distance of the fall (d).

b)

The mass of the dropped object.

c)

The average time taken to fall (t).

d)

The acceleration due to gravity (g).

2.

In the Gravitational Drop Challenge, the timekeeper measures the duration it takes for the objects to fall from a fixed height. This measured duration represents the

a)

Constant variable.

b)

Independent variable.

c)

Controlled variable.

d)

Dependent variable.

3.

In the experimental design, why was it critical to control the "drop height" for both the light and heavy objects?

a)

To ensure the objects hit the ground simultaneously.

b)

To control the distance (d), ensuring any difference in time is attributed only to the mass.

c)

To prevent air resistance from affecting the results.

d)

To change the gravitational constant (G).

4.

A scientist performs the vacuum chamber experiment, confirming that mass does not affect the acceleration rate. In this scenario, what is the key that is manipulated to eliminate an external force?

a)

The distance of the drop.

b)

The presence of air (by sucking it out).

c)

The mass of the bowling ball.

d)

The acceleration due to gravity.

5.

In an expected fall (like from the Empire State Building), air resistance increases as the velocity of the falling object increases. If a scientist studies the relationship between velocity and air resistance, velocity is the independent variable, and air resistance is the dependent variable. This relationship is best categorized as:

a)

An inverse square relationship.

b)

A cause-and-effect relationship.

c)

A constant relationship.

d)

An exponential decay relationship.

6.

Newton’s Law of Universal Gravity relates the force (F) to the masses (m1 and m2) and the distance (d). If a scientist keeps the masses constant and systematically increases the distance between the objects, what is the ?

a)

Gravitational Force (F).

b)

Mass (m1).

c)

Distance (d).

d)

Gravitational Constant (G).

7.

If the distance (d) between two objects is held constant, and Mass 1 is systematically doubled, the magnitude of the resulting gravitational force (F) would be:

a)

Constant variable.

b)

Independent variable.

c)

Dependent variable.

d)

Controlled variable.

8.

When studying Universal Gravitation, the gravitational constant (G) is a quantity that remains fixed regardless of location in the universe. This classification makes G:

a)

Dependent variable.

b)

Constant.

c)

Independent variable.

d)

Resultant force.

9.

In the equation F = mg, if the mass (m) is considered the independent variable, what term best describes the dependent variable F? (Force of Gravity)?

a)

Inertia.

b)

Acceleration.

c)

Gravitational constant.

d)

Weight.

10.

When comparing the impact of mass and distance on gravitational force, which variable would create a graph that drops off much more steeply as the value increases?

a)

Mass

b)

Distance

c)

Gravitational constant (G)

d)

Inertia

11.

A graph plots the velocity of a skydiver (Y-axis) against time (X-axis). The point where the curve flattens out and becomes horizontal represents the skydiver reaching:

a)

Zero acceleration.

b)

The moment the parachute opens.

c)

Terminal velocity.

d)

Maximum downward force.

12.

If a graph illustrates the proportional relationship described by the statement, "The heavier an object, the higher the inertia," the graph is showing that inertia depends on:

a)

Velocity.

b)

Mass.

c)

Distance.

d)

Air resistance.

13.

The Gravitational Recovery and Climate Experiment (GRACE) measures tiny variations in Earth’s gravity over time. In this mission, the measured gravitational variations are the primary:

a)

Independent variable.

b)

Dependent variable.

c)

Constant (G).

d)

Initial velocity.

14.

If you were graphing the relationship between the gravitational force exerted by the Earth on an object (X-axis) and the inertial resistance of that object (Y-axis) in a conceptual model, the resulting graph would show that:

a)

Inertia is inversely proportional to the gravitational force.

b)

Gravitational force remains constant regardless of inertia.

c)

Inertia increases proportionally to the gravitational force.

d)

The relationship is negligible until terminal velocity is reached.

15.

A student graphs the relationship between the force of gravity acting on an object (Y-axis) and the mass of the object (X-axis). If the experiment is performed in orbit (where distance from Earth is large and constant), the slope of the resulting linear graph is equal to:

a)

The total mass of the Earth.

b)

The acceleration due to gravity (g).

c)

The object's inertia.

d)

The gravitational constant (G).

16.

Gravitational force depends on

a)

mass and distance

b)

mass and volume

c)

volume and distance

d)

force and distance

17.

The force that causes objects with mass to attract one anoter.

a)

Mass

b)

Force

c)

Gravity

d)

Interacting Objects

18.

Which of the following data would support the claim that the gravitational force between objects depends on mass?

a)

An object's weight can change depending on where it is on Earth.

b)

Further away a planet is from the sun the smaller the gravitational force.

c)

Gravitational force is stronger on more massive planets.

d)

A rocket can escape Earth's gravity by traveling at high speed.

19.

A measure of how much matter is present in a substance

a)

Attractive

b)

Mass

c)

Force

d)

Gravity

20.

A push or pull that can change the motion of an object,

a)

Gravity

b)

Force

c)

Attractive

d)

Mass