How Will It Move? Force & Motion Review

What is the effect of gravity on motion?

• Gravity has no effect on motion.

• Gravity pulls objects toward the center of the Earth, affecting their motion.

• Gravity only affects objects in space.

• Gravity makes objects move faster in a straight line.

What are balanced forces?

• Forces that are equal in size and opposite in direction.

• Forces that are unequal in size and opposite in direction.

• Forces that act in the same direction and are equal in size.

• Forces that are unopposed and cause motion.

What is Newton's 1st Law of Motion?

• An object at rest stays at rest unless acted on by an unbalanced force.

• An object in motion stays in motion unless acted on by a balanced force.

• For every action, there is an equal and opposite reaction.

• An object will accelerate in the direction of the net force acting on it.

The beginning of motion is always caused by _______

• Friction

• Gravity

• Forces

• Inertia

Which of Newton's Laws is represented when an object is released and moves?

• Newton's 1st Law, inertia

• Newton's 2nd Law, force and acceleration

• Newton's 3rd Law, action/reaction

• Newton's Law of Universal Gravitation

What is inertia?

• The tendency of an object to resist changes in its state of motion.

• The force that causes an object to accelerate.

• The speed of an object in a given direction.

• The mass of an object multiplied by its velocity.

What is the definition of force?

• A push or pull on an object.

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

• The mass of an object multiplied by its velocity.

• A measure of the distance between two points.

What is Newton's 2nd Law of Motion?

• Force = mass x acceleration.

• Energy = mass x velocity.

• Momentum = mass x speed.

• Force = mass + acceleration.

Forces that are applied to an object in opposite directions _____ each other.

• Counteract

• Enhance

• Multiply

• Attract

What is the difference between speed and velocity?

• Speed is scalar (magnitude only), while velocity is vector (magnitude and direction).

• Speed and velocity are the same; both refer to how fast an object is moving.

• Speed is a vector quantity, while velocity is a scalar quantity.

• Speed is measured in kilometers per hour, while velocity is measured in meters per second.