Laws of Motion

Write TRUE if the statement is correct. Change the underlined word if not.

An object with greater mass and greater velocity have less momentum, thus has greater inertia.

(a)  

Write TRUE if the statement is correct. Change the underlined word if not.

Inertia is the tendency of a body to resist a movement or motion.

(a)  

Multiple Choices:

Which of the following words can be applied in both blanks?

The _______ the object, the _______ is the inertia.

• heavier; heavier

• heavier; lighter

• lighter; lighter

• lighter; heavier

Which of the following objects from the group has the most inertia?

• A feather on top of a chair

• A small plastic ball from the store

• Your brother's small teddy bear

• Your uncle's car from the junkshop

There are 3 coins on the table. They all have the same size. Coin A accelerates much faster than Coin C. Coin B accelerates slower than Coin C.

Which of the following statement is true about the given scenario?

• Coin B is the heaviest among the coins

• Coin A has the most inertia among the coins

• Coin C has the lowest inertia in the group

• Coin C has the lowest weight than the rest

There are 3 different boxes. They all have the same size and velocity, but their mass is consecutive of each other. If Box A's mass is 10kg, which box has the most inertia?

• Box A

• Box B

• Box C

• All boxes have the same inertia

Write TRUE if the statement is correct. Change the underlined word if not.

The Force by a 50kg object with an acceleration of 20m/s² is 100 N.

(a)  

What is the acceleration of a 60kg car being pushed by a man with 15 N?

• 0.025 m/s²

• 0.25 m/s²

• 2.5 m/s²

• 25 m/s²

What is the amount of force applied to a 5kg toy car that accelerates in a rate of 8m/s²?

• 2 N

• 20 N

• 4 N

• 40 N

A truck is carrying 60000g sacks of rice. If the truck applied 100 N force, what will be its acceleration?

• 0.002 m/s²

• 0.02 m/s²

• 1.67 m/s²

• 16.7 m/s²