Force and Motion

What is motion?

• The change in position of an object over time.

• The speed of an object at a given moment.

• The force applied to an object.

• The distance traveled by an object in a straight line.

What is an independent variable?

• The variable that is changed or controlled in a scientific experiment to test its effects on the dependent variable.

• The variable that is measured in an experiment to see how it is affected by changes in the independent variable.

• A variable that remains constant throughout an experiment to ensure valid results.

• The variable that is manipulated to observe its effect on the control group.

What is gravity?

• A force that pulls objects toward each other, such as the force that pulls objects toward the Earth.

• A type of energy that causes objects to move in a circular path.

• A phenomenon that only affects large celestial bodies like planets and stars.

• An invisible barrier that prevents objects from escaping the atmosphere.

What is a dependent variable?

• The variable that is manipulated in an experiment.

• The variable that is measured or tested in an experiment, which is affected by the independent variable.

• The variable that remains constant throughout the experiment.

• The variable that is used to compare against the experimental group.

What is force?

• A push or pull on an object that can cause it to move, stop, or change direction.

• A type of energy that can be converted into work.

• The mass of an object multiplied by its velocity.

• A measure of the resistance of an object to changes in its state of motion.

What is the formula for calculating force?

• Force (F) = mass (m) + acceleration (a).

• Force (F) = mass (m) × acceleration (a).

• Force (F) = mass (m) / acceleration (a).

• Force (F) = acceleration (a) - mass (m).

What is an unbalanced force?

• A force that causes an object to accelerate because the forces acting on it are not equal.

• A force that acts on an object at rest, keeping it stationary.

• A force that is equal in magnitude and opposite in direction to another force.

• A force that does not change the motion of an object.

What is speed?

• The rate at which an object changes its position.

• The distance an object travels per unit of time, often measured in meters per second.

• The total distance covered by an object regardless of time.

• The force applied to an object to change its motion.

What is acceleration?

• The rate at which an object changes its velocity, which can be an increase or decrease in speed.

• The force applied to an object to change its direction.

• The speed of an object in a specific direction.

• The distance traveled by an object in a given time.

How does decreasing friction affect speed?

• It decreases the speed of the object due to increased resistance.

• It has no effect on the speed of the object.

• Decreasing friction allows an object to move faster because there is less resistance.

• It makes the object move slower by increasing drag.