Physical Science

Chapter 4: Energy

Solve a Simple Equation

1.
A jogger whose mass is 65 kg is moving at a speed of 4 m/s. What is the jogger's kinetic energy?
A)240 J
B)1040 J
C)520 J
D)400 J
2.
A jogger whose mass is 70 kg is moving at a speed of 3 m/s. What is the jogger's kinetic energy?
A)160 J
B)180 J
C)315 J
D)400 J
3.
A jogger whose mass is 75 kg is moving at a speed of 4 m/s. What is the jogger's kinetic energy?
A)1200 J
B)600 J
C)750 J
D)300 J
4.
What is the kinetic energy of a baseball moving at a speed of 50 m/s if the baseball has a mass of 0.15 kg?
A)188 J
B)376 J
C)94 J
D)400 J
5.
What is the kinetic energy of a baseball moving at a speed of 60 m/s if the baseball has a mass of 0.15 kg?
A)190 J
B)200 J
C)270 J
D)540 J
6.
What is the kinetic energy of a baseball moving at a speed of 45 m/s if the baseball has a mass of 0.15 kg?
A)76 J
B)98 J
C)150 J
D)152 J
7.
A car moving at a speed of 20 m/s has a kinetic energy of 200,000 J. What is the car's mass?
A)1000 kg
B)1200 kg
C)1400 kg
D)1600 kg
8.
A car moving at a speed of 20 m/s has a kinetic energy of 250,000 J. What is the car's mass?
A)1200 kg
B)1250 kg
C)1400 kg
D)1500 kg
9.
A sprinter has a mass of 80 kg and a kinetic energy of 3000 J. What is the sprinter's speed?
A)6 m/s
B)7 m/s
C)8 m/s
D)9 m/s
10.
A sprinter has a mass of 80 kg and a kinetic energy of 2500 J. What is the sprinter's speed?
A)12 m/s
B)15 m/s
C)8 m/s
D)10 m/s
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