AS Physics Forces
Quiz
•
Physics
•
11th Grade
•
Practice Problem
•
Hard
Gemma Pace
Used 14+ times
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9 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Two masses hang at rest from a spring, as shown in the diagram. The string separating the masses is burned through. Which of the following gives the accelerations of the two masses as the string breaks?
acceleration of free fall = g
A
B
C
D
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which one of the following could not be used as a unit of force?
A T m
W s–2
kg m s–2
J m–1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A truck of mass 2.1 × 103 kg tows a car of mass 1.3 × 103 kg along a horizontal road.
The total resistive force on the car is 1100 N.
The acceleration of the car and truck is 2.3 m s−2. What is the tension in the tow rope?
3000 N
4100 N
7800 N
8900 N
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A lift and its passengers with a total mass of 500 kg accelerates upwards at 2 m s–2 as shown. Assume that g = 10 m s–2
What is the tension in the cable?
1000 N
4000 N
5000 N
6000 N
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A parachutist descends to the ground at a constant speed with the parachute open. Which force, together with the parachutist’s weight, makes a pair according to Newton’s third law of motion?
the drag force on the parachutist from the air
the tension in the strings of the parachute
the gravitational force of the parachutist on the Earth
the lift force on the parachute from the air
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A suitcase weighing 200 N is placed on a weighing scale in a lift.
The scale reads 180 N when the lift is moving.
The lift is
moving down at a constant velocity
moving down with a decreasing velocity.
moving up at a constant velocity.
moving up with a decreasing velocity.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A rocket of mass 12 000 kg accelerates vertically upwards from the surface of the Earth at 1.4 m s−2.
What is the thrust of the rocket?
1.7 × 104 N
1.7 × 105 N
1.3 × 105 N
1.6 × 105 N
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