5(a) The force that keeps an object moving in a circular path is known as the
A balancing force
B centripetal force
C reaction force
D resistance force
5(b) Figure 8 shows an object moving in a circular path - Edexcel - GCSE Physics Combined Science - Question 5 - 2019 - Paper 1
Question 5
5(a) The force that keeps an object moving in a circular path is known as the
A balancing force
B centripetal force
C reaction force
D resistance force
5(b) Fi... show full transcript
Worked Solution & Example Answer:5(a) The force that keeps an object moving in a circular path is known as the
A balancing force
B centripetal force
C reaction force
D resistance force
5(b) Figure 8 shows an object moving in a circular path - Edexcel - GCSE Physics Combined Science - Question 5 - 2019 - Paper 1
Step 1
5(a) The force that keeps an object moving in a circular path is known as the
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The correct answer is B centripetal force, which is the force that continuously pulls the object towards the center of the circle, allowing it to maintain a circular trajectory.
Step 2
5(b)(i) Draw an arrow on Figure 8 to show the direction of the force that keeps the object moving in a circular path.
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The arrow should be drawn pointing towards the center of the circle, representing the centripetal force acting on the object.
Step 3
5(b)(ii) The object in Figure 8 is moving at constant speed. Explain why it is not moving with constant velocity.
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Even though the object maintains a constant speed, it is not moving with constant velocity because velocity is a vector quantity that depends on both speed and direction. In circular motion, the direction of the object is continuously changing, resulting in a change in velocity. Therefore, while the speed remains the same, the changing direction means the velocity is not constant.
