Front

What is the force that opposes the motion of any object?

Back

Friction

Front

What type of forces are present when two arm wrestlers exert force on each other's hands and the hands don't move?

Back

Balanced forces

Front

Why is it more difficult to start a 50 kg box sliding across the floor than a 5 kg box?

Back

The 50 kg box has greater mass.

Tags

NGSS.MS-PS2-2

Front

In which situation are the forces operating on an object unbalanced?

Back

A baseball falls at a faster and faster speed.

Tags

NGSS.MS-PS2-2

Front

What type of force is needed to overcome the inertia of an object?

Back

Unbalanced force

Front

Define inertia in the context of motion.

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

What is the relationship between mass and gravitational force?

Back

The gravitational force acting on an object is directly proportional to its mass.

Tags

NGSS.MS-PS2-4

Front

What is the difference between balanced and unbalanced forces?

Back

Balanced forces do not change the motion of an object, while unbalanced forces cause a change in motion.

Tags

NGSS.MS-PS2-2

Front

What is Newton's First Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force.

Front

What is the formula for calculating force?

Back

Force = mass × acceleration (F = ma)

Tags

NGSS.MS-PS2-2