1st Summative Test in General Physics 1: Motion

Quiz by KATE LAPID

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30 questions
• Q1

A bicyclist covers 60miles between 2 pm and 6 pm. What was his average speed?

30 mph

60 mph

45 mph

15 mph

60s
• Q2

There are three forcesacting on an object: 6 N to the left, 5 N to the right, and 3 N to the left. Whatis the net force acting on the object?

8N left

4 N left

4 N right

8N right

60s
• Q3

John walks 6 km east during first day, and 3 km east the next day. What is the total displacement of John in two days?

9 km, east

6km, west

10km, east

3km, east

60s
• Q4

What average speed, most nearly, is required to run a mile (1.6 km), in 4 minutes?

7.0 m/s

70 m/s

40.0 m/s

4.0 m/s

60s
• Q5

A tennis ball is hit with a speed of 3.4 m/s with an angle of 30° at five sec. How far will the ball travel horizontally before landing?

14.72m

0.95m

14.27m

0.59m

60s
• Q6

Which of the following indicate that an object has been subjected to an unbalance force?

The object slows down

All of the above

The object speeds up.

The object changes direction

60s
• Q7

A migrating bird is initially flying south at 6 m/s. To avoid hitting a high-rise building, the bird veers and changes its velocity to 8 m/s east over a period of 2s. What is the magnitude of the bird's average acceleration during this 2-s interval?

5 m/s2

1 m/s2

4 m/s2

3 m/s2

60s
• Q8

A car has an initial velocity of 40 m/s. It stops over 120 m when the breaks are applied. How long does it take for the car to stop?

9s

12s

6s

3 s

60s
• Q9

When the two unknown objects fall at the same rate, what best assumption do you guess?

they are made in the same material

they have the same size

they have the same shape

they are falling in a vacuum

60s
• Q10

Considering that the astronaut simultaneously drops a stoneand paper from the same height on the moon with no atmosphere, which one hitsthe ground first?

the paper

they don’t fall

they hit the ground at the same time

the stone

60s
• Q11

If an object remains at rest, which of the following statement is/are true?

I. There must be noforce acting on it.

II. There must be netforce acting on it.

III. There must be balanced forces acting on it.

I and III

II and III

I only

II only

60s
• Q12

If an object weighs 600N on Earth and 100N on the moon, which statement is correct?

I. The object has less inertia in the moon.

II. The object has less inertia on Earth.

III. The object has same inertia on the Earth and on the moon.

I and II

I only

III only

II only

60s
• Q13

Aeron spins a 5kg ball in circular motion with a speed of 4m/s. What would be the centripetal force if the diameter is 12m?

18m/s

13 m/s

19 m/s

14 m/s

60s
• Q14

A gun is held horizontally and fired. At the same time the bullet leaves the gun's barrel an identical bullet is dropped from the same height. Neglect air resistance. Which bullet will hit the ground with the greatest velocity?

The bullet that was dropped, as it only has vertical distance to travel.

The bullet that was dropped because it falls for a longer time

It will be a tie because the acceleration of gravity is the same for both.

The bullet that was fired, because it feels the force of gravity over a longer distance.

60s
• Q15

What is true about projectile motion?

The horizontal and vertical motions are independent.

The force on the projectile is always vertically downward.

The acceleration varies as the projectile rises towards its maximum height.

The acceleration of the projectile is constant throughout the flight.

60s

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