Additional Assignment G10

Which is a vector quantity?

• density

• mass

• pressure

• weight

The graph shows the speed of a car travelling through a town. Which section of the graph represents a period when the car is decelerating?

• A

• B

• C

• D

A student has a measuring cylinder containing water and also has a balance. Which of these could she use to find the volume of a small metal sphere? She has no other apparatus.

• either the measuring cylinder containing water or the balance

• the measuring cylinder containing water only

• the balance only

• neither the measuring cylinder nor the balance

The diagram shows a solid object on a flat surface, with two forces acting on the object. What is the resultant force on the object?

• 1 N to the left

• 1 N to the right

• 7 N to the left

• 7 N to the right

Fig. 3.2 shows the directions of two forces acting on a different balloon as it moves. Determine the magnitude and direction of the resultant force on the balloon.

• magnitude = 0.84 N

  direction : 28.4⁰ relative to the horizontal

• magnitude = 0.84 N

  direction : 48.4⁰ relative to the horizontal

• magnitude = 0.34 N

  direction : 28.4⁰ relative to the horizontal

• magnitude = 0.34 N

  direction : 48.4⁰ relative to the horizontal

Which row contains one scalar quantity and one vector quantity?

• A

• B

• C

• D

The table gives data about four liquids, W, X, Y and Z.

None of the liquids mixes with any of the other liquids. All the liquids are put in the same container and settle to form four separate layers. Which statement is correct?

• W forms the layer below X.

• X forms the top layer.

• Y forms the bottom layer.

• Z forms the layer below Y.

A rectangular swimming pool is 50 m long and 25 m wide. It contains water at a depth of 2 m. The density of the water is 1000 kg /m³ . What is the mass of the water in the pool?

• 2.5 kg

• 25 kg

• 77000 kg

• 2500000 kg

A train begins a journey from a station and travels 60 km in a time of 20 minutes. What is the average speed of the train?

• 3.0 m/s

• 5.0 m/s

• 50 m/s

• 60 m/s

A ball hits a bat with a velocity of 20 m/s, and leaves the bat travelling with a velocity of 30 m/s in the same direction. The ball is in contact with the bat for 0.10 s. What is the magnitude of the acceleration of the ball whilst it is in contact with the bat?

• 1.0 m/s²

• 5.0 m/s²

• 100 m/s²

• 500 m/s²