# Linear Motion Quiz Questions And Answers

20 Questions | Attempts: 3165
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• 1.
On a position-time graph, a changing velocity is represented by a straight line.
• A.

True

• B.

False

• 2.
Calculate the distance (in km) that Charlie runs if he maintains an average speed of 8 km/hr for 1 hr.
• 3.
Speed is
• A.

A measure of how fast something is moving.

• B.

The distance covered per unit time.

• C.

Always measured in terms of a unit of distance divided by a unit of time.

• D.

All of the above

• 4.
Calculate the distance you will travel if you maintain an average speed of 10 m/s for 40 seconds.
• 5.
Acceleration describes
• A.

Any change in velocity.

• B.

An object that is speeding up.

• C.

An object that is slowing down.

• D.

An object that is changing direction.

• E.

All of the above

• 6.
Calculate the speed of a bowling ball that moves 8 meters in 4 seconds.
• 7.
As a ball falls freely, the distance it falls each second is the same.
• A.

True

• B.

False

• 8.
Calculate the acceleration of a bus that goes from 10 km/h to a speed of 50 km/h in 10 seconds.
• 9.
If an object moves from one position to another, it is
• A.

Accelerating

• B.

Moving

• C.

Speeding

• D.

In free fall

• 10.
Calculate the speed (in m/s) of a skateboarder who accelerates from rest for 3 seconds down a ramp at an acceleration of 5 m/s2.
• 11.
Calculate the vertical distance an object dropped from rest would cover in 12 seconds if it fell freely without air restistance.
• 12.
An apple drops from a tree and hits the ground in 1.5 seconds. Calculate how far it falls.
• 13.
Calculate the acceleration of a ball that starts from rest and rolls down a ramp and gains a speed of 25 m/s in 5 seconds.
• 14.
Objects in free fall are only influenced by gravity, not by air resistance.
• A.

True

• B.

False

• 15.
Calculate the instantaneous speed (in m/s) at the 10-second mark for a car that accelerates at 2 m/s2 from a position of rest.
• 16.
Elapsed time is the time that passes from the beginning to the end of a fall.
• A.

True

• B.

False

• 17.
Calculate your average walking speed when you step 1 meter in 0.5 seconds.
• 18.
When you look at the speedometer in a moving car, you can see the car's
• A.

Instantaneous speed

• B.

Average speed

• C.

Instantaneous acceleration

• D.

Average acceleration

• E.

Average distance traveled

• 19.
Suppose you take a trip that covers 240 km and takes 4 hours. Your average speed is
• A.

480 km/h.

• B.

240 km/h.

• C.

120 km/h.

• D.

60 km/h.

• 20.
A position-time graph of constant velocity will show a
• A.

Straight line.

• B.

Curved line.

• C.

Wavy line

• D.

Distorted line

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