Unit 3: Force, Speed, & Newton (MU1)

Front

What is the resultant force?

Back

The resultant force is the overall force acting on an object when all individual forces are combined. It determines the object's motion.

Front

What is an unbalanced force?

Back

An unbalanced force is a force that causes an object to change its state of motion, either by accelerating, decelerating, or changing direction.

Front

Why does a person weigh less on the Moon than on Earth?

Back

A person weighs less on the Moon because the Moon has less mass and therefore less gravitational pull compared to Earth.

Front

What does it mean for an object to be moving at constant speed?

Back

An object moving at constant speed travels the same distance in equal intervals of time without speeding up or slowing down.

Front

What are balanced forces?

Back

Balanced forces are forces that are equal in size but opposite in direction, resulting in no change in motion.

Front

What is gravity?

Back

Gravity is a force that attracts two bodies towards each other, depending on their masses and the distance between them.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object, which can occur due to a change in speed or direction.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object, caused by the contact between two surfaces.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion, whether at rest or in motion.