(ACDML 01) Pre-Test: Let's Get Physical

The push or pull experienced by an object is called ______.

• Velocity

• Speed

• Force

• Motion

Answer explanation

Force refers to the push or pull experienced by an object.

_______ is a force that pulls everything towards the Earth.

• Gravity

• Air Resistance

• Friction

• Tension

Answer explanation

Gravity is a force that pulls everything towards the Earth.

_____ is a type of force that is applied to an object by a person or another object.

• Tension

• Friction

• Applied

• Normal

Answer explanation

An applied force is a type of force that is applied to an object by a person or another object.

_____ refers to a change in position of an object with respect to a reference point and time.

• Force

• Speed

• Velocity

• Motion

Answer explanation

Motion refers to a change in position of an object with respect to a reference point and time.

______ is a type of motion that moves along a straight line.

• Circular

• Rectilinear

• Oscillating

• Circular

Answer explanation

Rectilinear is a type of motion that moves along a straight line.

Circular motion refers to the movement of an object in a circular path.

• True

• False

Answer explanation

YES. Circular motion refers to the movement of an object in a circular path.

A backpack hanging in Diane's shoulders exhibits frictional force.

• True

• False

Answer explanation

NO. A backpack hanging in Diane's shoulders exhibits tension force, not frictional force.

As gravity pulls objects down, air resistance acts in an opposite direction.

• True

• False

Answer explanation

YES. As gravity pulls objects down, air resistance acts in an opposite direction.

An apple falling from a tree is an example of rotational motion.

• True

• False

Answer explanation

NO. An apple falling from a tree is an example of rectilinear motion, not circular.

Forces cause motion.

• True

• False

Answer explanation

YES. Forces acting upon an object cause motion.