Physical Science 9 Weeks Test 20234 A

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An object with a mass of 5.0 kg accelerates 10.0 m/s2 when an unknown force is applied to it. What is the amount of the force?

• 0.5 Newtons
• 2 Newtons
• 50 Newtons

An object accelerates 30.0 m/s2 when a force of 60.0 newtons is applied to it. What is the mass of the object?

• 0.5 kg
• 2 kg
• 1,800 kg

An object with a mass of 12.0 kg has a force of 24.0 newtons applied to it. What is the resulting acceleration of the object?

• 0.5 m/s
• 2 m/s
• 288 m/s

You start running and increase your speed to 30 m/s in a period of 10 s. What is your acceleration?

• 3 m/s
• -3 m/s
• 20 m/s

An object moving at 10 m/s takes 2 s to come to a stop. What is the object’s acceleration?

• 5 m/s
• -5 m/s
• 8

Suppose you increase your walking speed from 10 m/s to 30 m/s in a period of 5 s. What is your acceleration?

• 4 m/s
• -4 m/s
• 2.5

What is the acceleration of a car that goes from 100 km/hr to 150 km/hr in 2 h?

• -25
• 25
• 50

Science is a system of knowledge and the methods you use to find that knowledge. The goal of science is to expand knowledge.

• True
• False

Technology is the use of knowledge to solve practical problems. The goal of technology is to apply knowledge.

• True
• False