8th Topic 2 Look Back Quiz

What is the tendency of an object to stay at rest or in uniform motion called?

• Force

• Energy

• Inertia

• Momentum

What happens to an object at rest if no unbalanced force acts on it?

• It will start moving

• It will stay at rest

• It will change direction

• It will increase speed

Tags

NGSS.HS-PS2-1

What is required to change the state of motion of an object?

• Inertia

• Energy

• A balanced force

• An unbalanced force

Tags

NGSS.MS-PS2-2

What is the term for an object's resistance to changes in motion?

• Force

• Inertia

• Velocity

• Acceleration

What is the relationship between force and motion according to Newton's first law?

• Force is not needed for motion

• Force changes the state of motion

• Force keeps objects at rest

• Force decreases inertia

Tags

NGSS.MS-PS2-2

What is the effect of inertia on an object at rest?

• It makes the object move

• It keeps the object at rest

• It changes the object's direction

• It increases the object's speed

When an object is at rest, what balances the downward force of gravity?

• Frictional force

• Upward forces

• Lateral forces

• Rotational forces

Tags

NGSS.HS-PS2-1

What happens to an object when balanced forces act on it?

• It accelerates

• It moves in a circle

• It remains at rest or moves at a constant speed

• It changes direction

Tags

NGSS.MS-PS2-2

How do balanced forces affect an object in motion?

• They cause it to stop

• They change its direction

• They maintain its constant speed

• They increase its speed

Tags

NGSS.MS-PS2-2

What is the effect of balanced forces on an object moving at a constant speed?

• The object will stop

• The object will accelerate

• The object will continue moving at the same speed

• The object will change direction