Force, mass and acceleration
Grade 8 Science Worksheet
Circle the best answer, or write your answer on the line.
Ari pushes a 15 kg wagon with a net force of 30 N. What is its acceleration?
Read this first
Use this
Force arrow diagram, one dimension, arrows drawn to scale by size. Box A labeled 8 kg: net force 24 N pointing right.
Bo slides an 8 kg box of games with a net force of 24 N. What is its acceleration?
Esme pulls a 9 kg sled with a net force of 36 N. What is its acceleration?
Jun pushes a 10 kg wagon with 40 N; friction pulls back with 10 N. What is the acceleration?
Kira pushes a 20 kg shopping cart with 60 N against 20 N of friction. What is the acceleration?
arrows drawn to scale by size. Luz pushes an 8 kg box across the floor with 56 N; friction is 16 N. What is the acceleration?
Table (example data)
Each cart gets the same 24 N net force. Cart P 4 kg, cart Q 8 kg, cart R 12 kg.
Milo's table shows three carts with the same net force. Which cart has the greatest acceleration?
- Cart P
- Cart Q, the middle mass
- Cart R, since it has the most mass
- Each the same, since the force is the same
Using the same table, what is cart Q's acceleration, Noah?
- 192 m/s²
- 6 m/s², since it gets the same force as P
- 24 m/s²
- 3 m/s²
Cart R has three times cart P's mass. How does R's acceleration compare with P's, Pia?
- One third as much
- The same
- Three times as much
- Twice as much
Use this
Investigation card (test results). A teacher and the class pull a 2 kg cart with a spring scale. Changed: the pulling force (2 N, 4 N, 6 N). Measured: the cart's acceleration. Kept the same: the cart, the track. Results: 1 m/s², 2 m/s², 3 m/s².
Tala looks at the results. Which conclusion do they support?
- More force gave more acceleration
- The cart's mass changed each time
- More force gave a higher fixed speed
- Force did not matter