Forces- Mass, Weight, Moment and Stability

Forces- Mass, Weight, Moment and Stability

Miss K. Boodai

Open Ended

Who is this?

Poll

Newton's second law states that force is proportional to mass.

• True

• False

Fill in the Blank

Newton's first law states that a body at rest will ________ at rest and a body in motion will _________ in motion at the same speed unless acted upon by an _____________ force.

Multiple Choice

Newton's first law is the law of inertia.

• true

• false

Multiple Choice

The formular associated with Newton's second law is:

• F= mv

• F= a

• F= ma

• F= av

Multiple Choice

An object with greater mass will need a greater force to be moved from rest (force is proportional to mass).

• True

• False

Poll

Are mass and weight the same?

• Yes

• No

Poll

When we use a bathroom scale, what do we measure?

• Weight

• Mass

Multiple Choice

A man with a mass of 54kg weighs how many Newtons on Earth?

• 5.4 N

• 540 N

• 54 N

Multiple Choice

A teacup exerts a force of 6N on a table. What is the mass of the teacup?

• 60 kg

• 6 kg

• 0.6 kg

• 0.06kg

Multiple Choice

From the definition of moments. What equation would we use to calculate moment of a force?

• Moment = F x d

• Moment = F x a

• Moment = F x v

• Moment = F x t

Multiple Choice

We calculate weight of an object by multiplying mass by acceleration due to gravity.

• True

• False

Multiple Choice

An object on Earth has_______ mass than the same object in out of space

• higher

• lower

• same

Multiple Choice

The weight of an object on Earth is ___________ than the weight of the same object on the moon.

• greater

• lesser

• same

Multiple Choice

Moment is essentially the turning effect of a force.

• True

• False

Multiple Choice

Gravity acts

• upwards

• downwards

• left

• right

Multiple Choice

The value of acceleration due to gravity on Earth is

• 9 ms^-2

• 11 ms^-2

• 10 ms^-2

Multiple Choice

A war with a narrow base is more stable

• True

• False