Physics_A_070925

What is the formula for calculating work when a constant force is applied along a straight path?

Which unit is used to measure power in the International System of Units (SI)?

• Newton

• Joule

• Watt

• Pascal

If a force of 50 N is applied to move an object 10 meters, what is the work done?

• 5 J

• 500 J

• 60 J

• 0.2 J

Tags

NGSS.HS-PS3-1

What is the formula for calculating power when work and time are known?

• 147 J

• 150 J

• 1,470 J

• 75 J

Tags

NGSS.MS-PS3-2

A person pushes a lawnmower with a force of 100 N over a distance of 20 meters. How much work is done?

• 2,000 J

• 200 J

• 20 J

• 1,000 J

A car engine exerts a force of 4000 N to move the car at a constant speed of 10 m/s. What is the formula to calculate the power output?

A person applies a 200 N force to move a crate 5 meters, but friction exerts a force of 50 N in the opposite direction. What is the net force acting on the crate?

• 250 N

• 150 N

• 100 N

• 50 N

Tags

NGSS.MS-PS2-2

If a person does 2,000 J of work in 10 seconds, what is their power output?

• 200 W

• 20 W

• 2,000 W

• 100 W

A weightlifter raises a 75 kg barbell to a height of 2 meters in 4 seconds. What is the average power output?

• 735 W

• 367.5 W

• 294 W

• 147 W

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5