ESOL Forces and Motion QUIZ

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1. A car is traveling at a constant (unchanging) velocity of 70 km/h east for 3 hours. Which statement is TRUE about the acceleration of the car?

• The car has a positive acceleration (speeding up)
• The car has a negative acceleration (slowing down)
• The acceleration of the car is zero
• The acceleration is 23.3 m / s2

2. A 10kg box is pushed with with an acceleration of 4.3m/s2. What is the FORCE acting on the box?

• 43 N
• 2.33 N
• 14.3 N

3. Which statement below is TRUE about gravity?

• The BIGGER the mass , the BIGGER the force of gravity
• The BIGGER the mass, the SMALLER the force of gravity
• Gravity is determined by distance ONLY

4. Suppose a rollerblade racer finished a 140 meter race in 25 seconds. What is the average speed of the rollerblade racer?

• 3500 m/s
• 5.6 m/s
• 0.18 m/s

5. A car travels 4km east and then turns around and travels 2km west. What is the distance and what is the displacement?

• Distance: 6km, Displacement: 2km west
• Distance: 2km, Displacement: 4km east
• Distance: 6km, Displacement: 2km east

6. An elephant has a mass of 580kg. What is its weight?

(remember g = 9.8m/s)

• 5,684 N
• 59.2 N
• 0.017 N

7. What is the acceleration of an object with mass of 46 kg when an unbalanced force of 230 N is applied to it?

• 5 m/s2
• 0.2 m/s2
• 276 m/s2

8. "The tendency of an object to remain unchanged" best describes WHICH term below?

• Gravity
• Weight
• Mass
• Inertia
• Force

9. Mary travelled 70 miles/hour due north. This is an example of:

• Speed
• Velocity
• Acceleration
• Displacement